The perimeter of a rectangle is 112 cm. if the length is 30 cm, how wide is the rectangle?

Roberto bought a $170,000 house, paying 22% down, and financing the rest at 5.4% interest for 30 years. Her monthly payments are $744.59. How much will he really pay for her $170,000 house?

400 students were randomly sampled from a large university, and 289 said they did not get enough sleep. Conduct a hypothesis test to check whether this represents a statistically significant difference from 50%, and use a significance level of 0.01.

the sixth grade class from Franklin Middle School is going to the zoo on a field trip. there are 270 students who want to go on the field trip.

You purchase a shirt for 8.50 there is a 6% sales tax. What will be your total cost

Where did most Irish immigrants settle between 1820 and 1850?

Amir invests $4,000 in a 5-year cd paying 3.5% interest. How much interest will he make on the cd in 5 years? The simple interest formula is I=prt.

Mr Smith can do 10 jumping jacks in 8 seconds. At this rate, how many jumping jacks can he do in 12 seconds? Show your work.

Tori has a bag of 32 markers to share equally among 3 friends and herself. how many markers will tori and each of her friends get?

7,9,12 angles can form a triangle

What is the original price if: after a 70% discount it became $3b