John is 4 years older than his sister Mary. Together, their ages add up to 30. How old is Mary?

Arrange these numbers from least to greatest: 2/5 5/7 4/9 A. 2/5 5/7 4/9 B. 2/5 4/9 5/7 C. 5/7 4/9 2/5 D. 4/9 2/5 5/7

Oshua is planning the awards breakfast for the freshman class. The catering company charges a $350 fee for the rental materials, plus $6 per person at the party.

Suppose you by a 1.25 pound package of ham at $5.20 per pound

An online media service offers video and music downloads. Each download of a song costs $1.50. Each download of a video costs 2 times as much as the song download. You have a credit of $60. How many songs can you purchase after buying 15 videos?

X/5+37=-3 solve show work show check for problem

What is the answer to this problem? 7-3x - 15=19

1/2a - 1/2 = - 3 solve the following equation

Henry wants to resize a 10 inch wide by 12 inch long photograph for the school newspaper. It is to fit in a space that is 5 inches wide. What is the length of the resized photograph in inches? a. 6 inches c. 4 inches b. 12 inches d. 7 inches

If X = 3 units, Y = 9 units, and Z = 5 units, what is the volume of the right rectangular pyramid shown above?

How many solutions does the equation 6y - 3y - 7 = - 2 + 3 have? A. Two B. None C. Only one D. Infinitely many Also explain how you got the answer so i can learn more about it.