A book seller bought 80 copies of books at 3.50 per copy. He sold each of them at 4.20, find the total price and profit cost price

Regina has two electronic files when I was a size of 3.15 envy and the other has a size of 4.89 Embee what is the best estimate of the total size of the two Electronic files

X^2=25 solve the equation for x

Refer to Expression 1 and Expression 2. Expression 1 6·7-3²·9+4³ Expression 2 5+4·2+6-2·2-1 (a) What is the value of Expression 1? (b) Insert parentheses in Expression 2 so that it has a value of 19. Then show why your expression has a value of 19.

Marcus has to write a 412 page essay for his English class. He has only written 116 pages. How many pages does he have left to write?

The sum of three numbers is 26. the second number is twice the first and the third number is 6 more than the second. find the numbers. show the steps

Kelly was given square piece of material whose dimensions were 5x inches by 5x inches. She felt that it was a little too big for the project she was working on, so she cut 2 inches off each side of the square.

In a neighborhood of 846 people, 346 voted in the last election. What percent of the neighborhood did not vote?

198 = - 4x + 2 (-6x+3)

The expression 9 (y+3) - 2 (4y-4) is equivalent to A. y-1 B. y+15 C. y+18 D. y+23 E. y+35

The temperature of a sample of liquid water changes from 50°C to 30°C. Which statement best explains the change that must happen at the molecular level? The molecules move more quickly and their average kinetic energy increases.