Which systems below would be most easily solved using the substitution method?

A. 5x + 7y = 45

2x - 7y = - 14

B. 2m - 3n = - 2

m + 4n = 24

C. 2x = - 3y + 4

x = 2y - 5

D. 7x + 2y = 16

-21x - 6y = 24

A rectangle's length is 11 inches greater than its width. if the perimeter of the rectangle is 42 inches, find the length. (all answers are given in inches.)

How do you find b from 24-10b=9

The city of Paris, France is completely contained within an almost circular road that goes around the edge. If the diameter of the city is about 7 miles, estimate the circumference and area of the city to the nearest mile or square mile

Matthew worked 8.5 hours and earned $102. at that rate, how much will matthew earn if he works 19 hours

Find the product 9• (-8)

If arrivals occur at a mean rate of 3.6 events per hour, the exponential probability of waiting more than 0.5 hour for the next arrival is:

A multiple number of 7 and divisible by 5 and greater than 55

X/8=8/18 what does x eaqual

What's the volume of a sink customary unit

Elmer deposited $2250 into a savings account that pays annual simple interest at the end of seven years he earned $157.50 in interest what is the interest rate on a savings account round to the nearest 10th of a percent