John had $20. He earned $5, spent $10, earned $5 again, and then spent $3. After this series of earnings and expenses, how much money did he owe or have left?

What is two equivalent was to write 62.5%

the original price of a comic book was $10, but it is on sale 2/5 off the original price. what is the sale price of the comic book

Which situation can be modeled by the inequality 60-15≥7 60 - 15 x ≥ 7 ?

If you know that a line has a slope of 1/2 and a y-intercept of 7. What is the equation for that line in slope form?

A roller coaster makes an angle of 52 degrees with the ground. The horizontal distance from the crest of the hill to the bottom of the hill is about 121 feet. Find the height of the roller coaster.

78 students are going to be divided into 24 groups and the number of each group member will be either 4 or 2. How many groups of 2 will there be? Let x be the number of groups of 2 and let y be the number of groups of 4

Find the value of a - 8 when a = 18

write the number 700000 + 400000 + 10000

The regular price of a space invader game is $52 but it's on sale the discount is $13 what percentage discount is this

What is 5.721 rounded to 2 decimal places