How can you figure out

powers of ten

Simplify 2 x squared-7x-15

If i have 3 dimes 6 pennies and 1 nickel. what is the value of mi coins?

If a recipe calls for 3 1/2 cups of flour, how much flour will be needed if the recipe is tripled?

What is the least common denominator of 10 26 and 25

A conic section whose focus is at the pole has the equation r=2/1+cosθ. Which of the following equations is the directrix of the conic? rcosθ = - 2 rcosθ = 2 rsinθ = - 2 rsinθ = 2 I think its the second

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.