If ab = 8b, does a = 8 always?

Simplify (-15+78) - |22-83|

An eccentric baseball card collector wants to distribute her collection among her descendants. If she divided her cards among her 17 great-great-grandchildren, there would be 3 cards left over.

Which product is negative? -3⋅4⋅ (-2) ⋅ (-7) -3⋅5⋅ (-6) ⋅4 -7⋅ (-3) ⋅ (-9) ⋅0 -4⋅ (-6) ⋅ (-3) ⋅ (-5)

What is 3/4 : - 2 3/4

Find the real solutions of the following equation. x^4 - x^2 + 4x^2 - 16x - 192 = 0

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.