Tamir is a kickboxing instructor who will be teaching classes at a local gym. To get certified as an instructor, he spent a total of $109. Tamir will be earning a base salary of $95 per month from the gym, plus an additional $14 for every class he teaches. If Tamir teaches a certain number of classes during his first month as an instructor, he will earn back the amount he spent on certification. How much will Tamir's expenses and earnings be? How many classes will that take

It will take one class

Step-by-step explanation:

Tamir will earn $109 every month (his base salary and additional $14 equals to $109). This means after one class he will be able to earn back the money he spent of becoming an instructor.

49 square units

Step-by-step explanation:

When the length of the sides of a figure are increased by a scale factor, the area is increased by the square of that scale factor.

Since the scale factor used is 7, this means the area is increased by a factor of 7² = 49.

Multiplying the area of polygon V by the scale factor, we have 1(49) = 49.