Question

write an expression to represent donovans total score if one of his words contains six letters.
$w = $ the number of words made
$t = $ the number of tiles not used
$10w = $ the points earned from words made
$3t = $ the points taken away from tiles not used
$5 = $ the points earned per 6 - letter word

Explanation:

Step1: Base score from words

$10w$

Step2: Subtract penalty for unused tiles

$10w - 3t$

Step3: Add bonus for 6-letter word

$10w - 3t + 5$

Answer:

$10w - 3t + 5$