An item costs a store $89.89. The store then marks the price up 80%. What is the selling price of the item?

What is the y intercept for y equals x squared plus 8x + 15

Solve 6 (2x+2) x6 (3x) = 1

A local dairy farmer collects 490 gallons of milk from his cows. He keeps 1/35 of the milk for his own use, and sells the rest. Each quart of milk sells for 35 cents. In dollars, how much does he earn from selling his milk each day?

the angle of a triangle are given as 6x, (x-3), and (3x+7). find x then find the measures of the angles

Given y = f (u) and u = g (x), find dy/dx = f' (g (x)) g' (x).

Add h and 2, then multiply g by the result

A colony of ants has 50,000 members. Sam thinks the colony will grow at a rate of 4.5% each hour. About how many ants should he expect there to be in the colony after 10 hours

If jill had 6 different sweaters and 4 different pairs of pants how many different combinations can she wear?

2[s+3 (s-31) ]=18 how would i solve this

Paula ran 24 ft with the football and then passed it 15 feet to newt. newt ran 70 yards for a touchdown. what was the total number of feet the ball traveled?