3.

"a varies directly with b". If a = 4 when b = 21, find a when b-7.

If it takes John 1/8 of an hour to type up 2 pieces of paper and his work meeting is delayed 45 minutes how many pieces of paper does he type?

Ava is solving a geometry problem. The length of a side of a triangle is 36. A line parallel to that side divides the triangle into two equal area parts. She solved for the length of the segment dividing the triangle and got 25.455.

3. Mary bought a pair of speakers for $400. The following year, her friend bought the same speakers for $310. What is the percent decrease in the price of the speakers? A 225% B 22.5% C 77.5% D 2.3%

How do u express a ratio as a decimal

What is 4x (3.4 + 2) - (56 : 7) = ?

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.