How do you solve 5x + 9y = 23

And 3x + 14y = - 4 using elimination by multiplying?

The perimeter of a square must be greater than 148 inches but less than 196 inches. Find the range of possible side lengths that satisfy these conditions. (Hint: The perimeter of a square is given by P=4s, where s represents the length of a side).

What is the value of y^2-x^4 when y=9 and x=2?

What is the answer to 7/8x = - 21

Given the definitions of f (x) and g (x) below, find the value of g (f (-1)). f (x) = - 4x - 7 g (x) = x² + 7x - 2

In a survey, 70% of Americans said they own an answering machine. If 5 Americans are selected at random: a. Find the probability that exactly 3 own an answering machine; b. Find the mean number of people who own an answering machine.;

Most insurance companies will replace a vehicle any time an estimated repair exceeds 80% of the blue book value of the vehicle. Michele's insurance company paid $8500 for repairs on her car after an accident.

Does 2 (3n+3) = 6n+3 show how you know

7/18 ratio in simplest form

112 is what percent of 200?

Rosa can till 375ft of land in 15min what is Rosa's tilling rate