Find the length of the unknown sides

What are the length and width of a rectangle that has a perimeter of 60cm and a length 2 times the width?

The area of a rectangle garden is 60ft^2. the length is an irrational number. explain why or why not the width must be a fraction, whole number, irrational number, or non-real number.

If, and k is a nonzero constant, then y could be (A) (B) (C) (D) (E)

F (x) = a^x which of the following expressions is equal to f (3) * f (4) f (3^4) f (3+4) F (3*4)

Divide 11 by t. Then, add 2.

How do you evaluate a math problem? i thought it is when you answer the problem but i guess it was wrong.

What two numbers multiply to equal 22,440,000

Every year, Calaveras County holds a frog jumping contest. Mia entered her frog into the 100-yard contest and it completed the race in 2 minutes 33 seconds.

3 (3w-4) = - 20 Solve

The temperature, t, in Burrtown starts at 21°F at midnight, when h = 0. For the next few hours, the temperature drops 2 degrees every hour. Which equation represents the temperature, t, at hour h? A. t = 21h + 4 B. t = 4h + 21 C. t = - 4h + 21 D.

Ronnie misses the school bus 1 out of every 30 school days. He sets up the proportion 1/30=180/x to predict how many days he will miss the bus in the 180-day school year. What is Ronnie's error?