What is the value of the expression?

-4.2 (-2.8+4.5)

Estimate 4.22 times 4.49

I have 150 i share one third how much did i share

What is 0.16 in scientific notation?

Of the mountains that are over 13,000 feet, 5 Over 96 of them are located in the western province. Write this fraction as a decimal. If necessary, round to the nearest hundredth.

Sylvia translated the phrase into an algebraic expression and then evaluated it for n=5 "the square of a number increased by 9" What is the value she should get?

6x? - 552 + 9x + 15/3x+2

There are 20 pens in a package. Ten of the pens are black, 8 are blue, and the rest are red. Which ratio represents the number of red pens to black pens? A. 1/10 B. 1/5 C. 4/5 D. 5/1

To decorate a cake, you make a shade of green icing using 33 drops of yellow food coloring for every 44 drops of blue food coloring. If you use 1212 drops of yellow food coloring, how many drops of blue food coloring would you need?

Boxes of pencils contain 7 pencils. In my class I have 29 students. How many boxes will I need?

A rectangle is 36 inches x 48 inches. What is its perimeter? What is its area?