20 is 60% of what number

if i give your classmatea piece of chocolate that is 100 grams, what is the fensity of his chocolate bar

The total sales at Office Products this year are $713,340, which is 35% more than last year's sales. What is the amount of last year's sales?

Mary runs M miles a day. Timothy runs twice as many as Mary. Altogether, they run 18 miles each day. How many miles does Mary run each day?

How do you find the least common multiple of two numbers using prime factorizations?

If 40 buttons are in the whole set, how many are in 5/8 of the ser

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.