Amy has two older brothers. Ben is 3 years older than Amy. Chris is 10 years older than Ben. The total of their ages is 73. Form an equation and use it to work out Amy's age.

2222 describe the relationship between

As part of a screening process, computer chips must be operated in an oven at 125 °C. At the end of the cycle, the oven must be cooled before the chips can be removed. Ten minutes after starting cool-down, the temperature is 66 °C.

How do you calculate the percentage of a number?

The maximum grade allowed between two stations in a rapid-transit rail system is 3.5%. Between station A and station B, which are 260260 ft apart, the tracks rise 7 and one half7 1 2 ft.

Simplify the ratio 24:135

Simply: x^3 y^3 / x^3 y^2 (the arrows mean to the power of the number)

A costumer is buying 3dvds that cost $6.55 each, with an additional 8% sales tax. What is the total amount that the costumer pays, rounded up to the nearest cent

One of Edna's grandchildren, Toby, plans to spend 4 years in college. The university awards him a scholarship to cover his tuition, but he will need an additional $8,000 for other expenses over the four years.

Yvonne bought 10 yards of fabric to make bandanas for her basketball team each bandana requires 1/3 yard of fabric how many bandanas can she make?

What's the sum of - 4 and 14