What are the 2 ways to solve a system of equations to algebra

My question is 3/5 times 3/4=?

A local garage band, held a rent party. They charged $3 per person for admission, with the proceeds used to pay the rent. If the rent is $420 and they ended up with an extra $54 after paying the rent, how many people came to see them play?

Wills, Donald, and Maya found a quarter, a dime, a nickel, and 2 pennies when they were cleaning the house. They traded their dad for some other coins that were worth the same amount of money and split it evenly. How much did they get

What is the value of y in the formula shown when x = 4/5? y = 4x + √x + 0.2 - 5x y =

Write each ratio in simplest form: 3:6 10:5 16:24

Expand and simplify 9 (2x + 3) + 4x

What is the mean of the following set of numbers? 13, 15, 11, 30, 20, 24, 13 A. 15 B. 13 C. 19 D. 18

The height of an ostrich is 20 inches more than 4 times the height of a kiwi. Write and solve an equation to find the height of the kiwi. Show that your answer is reasonable.

A:b=2:3 b:c=4:7 a:c = x what is x?

What single decimal multiplier would you use to increase by 7% followed by a 4% decrease?