Evaluate when a=3 and b=6

(a+b) - 4a + 3b

Four balls Of wool will make 8 knitted Caps How many balls will the girl need if she wants to make 6 caps

A deck of cards has all 12 face cards removed. If a card is drawn at random, what are the odds against drawing a card that is a prime number? Note: Prime means the only numbers divisible are 1 and itself. 3 to 2 2 to 5 3 to 5 2 to 3

What value of x makes the equation true? 4 (2x-4) = 16

Select the proper order from least to greatest for 1/2, 5/6, 2/7, 4/2?

A car traveling with a constant speed travels 150 km in 7200 seconds what is the speed

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.