9. evaluate the expressions:
3) $p^2 + m$; use $m = 1$, and $p = 5$
4) $y + 9 - x$; use $x = 1$, and $y = 3$
5) $m + p \div 5$; use $m = 1$, and $p = 5$
6) $y^2 - x$; use $x = 7$, and $y = 7$
7) $z(x + y)$; use $x = 6$, $y = 8$, and $z = 6$
8) $x + y + y$; use $x = 9$, and $y = 10$

Question

Accepted Answer

### Problem 3:
# Explanation:
## Step1: Substitute values
Substitute $ m = 1 $ and $ p = 5 $ into $ p^2 + m $.
$ 5^2 + 1 $
## Step2: Calculate exponent and sum
Calculate $ 5^2 = 25 $, then $ 25 + 1 = 26 $.
# Answer:
26

### Problem 4:
# Explanation:
## Step1: Substitute values
Substitute $ x = 1 $ and $ y = 3 $ into $ y + 9 - x $.
$ 3 + 9 - 1 $
## Step2: Perform operations
$ 3 + 9 = 12 $, then $ 12 - 1 = 11 $.
# Answer:
11

### Problem 5:
# Explanation:
## Step1: Substitute values
Substitute $ m = 1 $ and $ p = 5 $ into $ m + p \div 5 $.
$ 1 + 5 \div 5 $
## Step2: Perform division and sum
$ 5 \div 5 = 1 $, then $ 1 + 1 = 2 $.
# Answer:
2

### Problem 6:
# Explanation:
## Step1: Substitute values
Substitute $ x = 7 $ and $ y = 7 $ into $ y^2 - x $.
$ 7^2 - 7 $
## Step2: Calculate exponent and difference
$ 7^2 = 49 $, then $ 49 - 7 = 42 $.
# Answer:
42

### Problem 7:
# Explanation:
## Step1: Substitute values
Substitute $ x = 6 $, $ y = 8 $, and $ z = 6 $ into $ z(x + y) $.
$ 6\times(6 + 8) $
## Step2: Calculate inside parentheses and multiply
$ 6 + 8 = 14 $, then $ 6\times14 = 84 $.
# Answer:
84

### Problem 8:
# Explanation:
## Step1: Substitute values
Substitute $ x = 9 $ and $ y = 10 $ into $ x + y + y $.
$ 9 + 10 + 10 $
## Step2: Perform addition
$ 9 + 10 = 19 $, then $ 19 + 10 = 29 $.
# Answer:
29

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QUESTION IMAGE

Question

Explanation:

Problem 3:

Step1: Substitute values

Step2: Calculate exponent and sum

Step1: Substitute values

Step2: Perform operations

Step1: Substitute values

Step2: Perform division and sum

Answer:

Problem 4: