Simplify the expression 2*7b

A shop owner bought 30 files and some diaries. he paid $82.50 for the files. each diary cost 10 times as much as a file. what was the cost of each diary?

What number would not group by addition

3x + 4y = 5 X - 3y = - 7 Solve by substitution

A local country officials need to calculate the capacity of a large hole for the garbage refuse dump. The dump hole is 250 feet long, 120 feet wide and 30 feet deep. What is the capacity of the dump hole in cubic feet.

A Teacher has a bag of 100 unit cubes. She gives an equal number of cubes to each of the seven groups in her class. She gives each group as many cubes as she can. How many unit cubes are left over?

A farmer has 25 yards of fencing to make a pig pen. He is going to use the side of the barn as one of the sides of the fence, so he only needs to fence 3 sides. What should be the dimensions of the fence in order to maximize the area?

If f (x) = x^2+1 and g (x) = x-4 which value is equivalent to (f•g) (10)

Mia credit card balance is less than - 85 Does she owe more or less than 85

Use an area model to multiply 45x61

The 3-liter bottles of soda are selling for $2.10. Graph the price of 3-liter bottles.