This number is nine more than seven squared, minus thirty.

Answer 1

Given: This number is nine more than seven squared, minus thirty.

Let n= "this number"

is becomes =

9 more than means we are going to +9 to...

7 square minus 30 becomes 7²-30

This number is 9 more than 7 squared minus 30

n = 7² - 30 + 9

n = 49 - 30 + 9

n = 28