20 is 60% of what number

Solve each solution by substitution. y=-x^2-2x+8 y=x^2-8x-12

I brought three business related books. my total was $150. if one book cost me 50% more than the other two books combined what was the price of this more expensive book

What is the relationship between the sine of an angle and cosine of the other acute angle in the same triangle? Will this be true every time? Why or why not?

Find the lateral surface area of the triangular prism.

About 31,000 people visited the San Diego zoo website the day the live Panda cam was launched on average how many people visited the website each hour

Meg lives in Indianapolis and wants to visit her mom in Lima. She has been meaning to go to a chiropractor in Dayton, so she is wondering whether it makes sense to stop there on the way.

An advertisement states that a can of paint will cover 480 square feet. How many gallons of paint are needed to cover 1,680 square feet?

Mrs McDonald spent 24.65 at a yard sale on Saturday. on Sunday she went to another sales and spent 14.95 more than she did on Saturday. what is the total amount that Mrs McDonald spent on both yard sales

Linda purchase a prepaid phone card for $30. Long distance calls cost $.17 a minute using this card when do use her card. Linda use her card only to make a long distance call if the remaining credit on her card is $22.

Consider this equation: - 2x - 4 + 5x = 8 Generate a plan to solve for the variable. Describe the steps that will be used.