What if four fifths plus twelve fifteenths

What is the length to the nearest tenth of the altitude of an equilateral triangle with a perimeter of 30 inches

How do you solve 7x (x+20)

A? 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field.

If the ratio of the ages of Kissi and Esinam is 3:5 and that of Esinam and Lariba is 3:5 and the sum of the ages of all 3 is 147 years, what is the age difference between oldest the youngest?

Whats is the answer of 9 times 24

How much larger is 6*10 to the power of 5 compared to 2*10 to the power of 3?

If P (A or B) equals=0.60.6 , P (A) equals=0.40.4 , and P (A and B) equals=0.350.35 , find P (B).

2 percent of 24 million

Alexander has a rectangular shed that has a width of 200cm. the length of it is 3 times the width what is the length? If alexander wants to put a string of lights around his shed, what length of lights should he buy?

A laptop that is originally $850 is on sale for $748. Find the percent decrease