9 less than the product of 9 and a number.

Step-by-step explanation:

9 less than

means that if we have a number y, 9 less than y is

y= the product of 9 and a number let's say we have x

so

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

your answer would be 12