What is the least common multiple of 20,45,80

Ahmed is taking orders for lunch. A slice of pizza costs $1.50 and a chicken sandwich costs $2.50. He collects $21.50 for the group of 9 people. Assuming each person orders only one item, how many people ordered a chicken sandwich

Tia shares 53 balloons equally among 4 children. How many balloons will be left over?

Multiply or find the special product. (Simplify your answer completely.) [ (x - 8y) + z][ (x - 8y) - z]

The ratio of two numbers is 3 to 5. Their sum is 136. Find the two numbers. how do I write it into an equation?

In sea water there is 5% of salt. How much seawater do you need in order to get 17.25 lb of salt?

Which explains how to find the radius of a circle whose equation is in the form x2 + y2 = z?

What is x + (5x-18) + 90 degrees

N-18=27 what would be N

A movie cost $3,254,107 to produce. What digit is in the hundred thousands place?

If a class is made up of 55% boys and there are 14 girls how many boys are there