What value of a makes the equation true

18/60=12/a

a 30

b 4

c 20

d 40

If x and y are positive integers and 3x+2y=13 what could be the value of y

What is the value of x in the equation 1/2x-2/3=30

What's the simplest form of 2x + 3 - x + 5? A. x + 8 B. 3x + 8 C. x - 2 D. x - 8

32 is what percent of 200

Which expression is equivalent to the expression 5b+16? 3b-6+2b+22 5b-6+b + 22 2b+4+2b + 12 7b+3-2b+9

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.