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

Social Security tax that is 6.2% of her gross pay Medicare tax that is 1.45% of her gross pay state tax that is 21% of her federal tax Determine how Marilyn's net pay will be affected if she increases her federal withholding allowances from 3 to 4.

An urn contains r red balls and b blue balls. One ball is selected at random from this urn, its color is recorded and it is returned to the urn along with m additional balls of the same color as chosen.

Each tile costs 80 cents how much change would i get back if i bought 192 tiles with 200 dollars

What is 7/12 as a decimal

Is 541983 divisible by 3

What is the sales tax on a jacket priced at $525 if the sales tax rate is 6%?

The amount that sunrise library charges for an overdue book is $0.25 per day plus $1 service charge. write a function using 2 variables for this situation.

How much work is done on an object if 6 newtons of force are applied to the object and it moves 3 meters? A. 0.5 J B. 2 J C. 3 J D. 18 J

Can a monomial have a negative exponent

What is make a ten to add 7+4=