Convert 15/125 to a decimal using long division

Simplify 7x + (x - 4) (x + 5) - 5x.

How do you Simplify 4/-2-2i

Patty made a banner that has an area of 196 square inches,. The length and width of the banner are whole numbers. The length is 4 times greater than the width. What are the dimensions of the banner?

Why do you need to simplify exponents?

Alice, Beth, and Charlene start climbing a staircase, each with her left foot on Step 1 and then her right foot on the next step they take. Alice climbs one step at a time, Beth 2 steps at a time, and Charlene 3 steps at a time.

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.