Sally is 5 years older than Helen. The product of their ages is 50. How old is Helen?

How many solutions does x^2-8x + 16=0 have and which ones are they

How do you calculate quadratic regression by hand

A gift shop had 500 coloring pencils. The shop sold 3 sets of 20 coloring pencils, 6 sets of 12 coloring pencils, 10 sets of 18 coloring pencils. Show how many coloring pencils are left

Drew paid 2.86 per pond of apples plus $0.10 for grocery bag. Is this word problem proportional?

Harold has four classes each school morning each class is an hour long and there is 10 minutes between classes the first class starts at 8 AM what class is the fourth class end

At a track meet, Jacob and daniel compete in 220 m hurdles. Daniels finishes in 3/4 of the a min. Jacob finishes with 5/12 of a min remaining. who ran the race in faster time?

Mark is simplifying fractions. Which fraction should he use to simplify 9/12 to lowest terms?

Empire Ford wants to estimate the proportion of trucks compared to all vehicles. They take several random samples of size 100 from the reserved parking lot (where there are numbered, pre-assigned parking spaces) at the Avista baseball stadium.

Find the rate of change in the number of voters between 8:00 (141) A. M and 10:00 A. M (798). Than interpret it's meaning

If a ball is selected at random from an urn containing six red balls, seven white balls, and seven blue balls, what is the probability that it will be a white ball?