Solve by elimination 2x-4y=8 and 3x-2y=8

Betty need 3/4 of a yard of fabric to make a skirt. She bought 9 yards of fabric. Write and solve and equation to find how many skirts x she can make form 9 yards of fabric

15 more than x is 58

Dylan is buying a book for $8.99. sales tax is 7%. which expression would calculate the total cost of the book? A) 8.99 (0.93) B) 8.99 (0.07) C) 8.99 (1.07)

Solve the following question. x/10=4

There are 50 tree frogs in the botanical gardens at t = 0. The population increases exponentially by 20% per year.

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.