Thirty six of eighty piano keys are black. What fraction of piano keys are black?

you invest $20000 into an account paying 9% annual interest rate. If the total earned is 1550 how long did you invest the money

In Hawaii, sales tax is 4.0 % what is the total (including tax) on items that total $136.55 before tax?

My common core lesson 7 3.1

What is the circumference of a circle with an area of 50.24cm^2 Use 3.14 for pi

A - times a - gives you what

Round both numbers to the nearest whole number and estimate the result 6.8*7.9, 7.6*7.5, 0.9*44, 0.2*44

The sum of a 3-digit number and a 1-digit number is 217. the product of the numbers is 642. if one number is between 200 and 225, what are the numbers

Counting codes. How many 3-digit telephone area codes are possible if the first digit cannot be 0 or 1?

The equation P=28+2.54w models the relation between the amount of Randy's monthly water bill payment, P, in dollars, and the number of units of water, w, used. Interpret the P-intercept of the equation.

A roller coaster ride holds a total of 36 passengers. The ratio of males to females on the ride is 5 : 4. Let xx represent the number of males on the ride. Let yy represent the number of females on the ride.