What is the value of this expression when 5a=20?

The stack on the left is made up of 15 pennies, and the stack on the right is also made up of 15 pennies.

X squared plus 58 equals 4

How can I solve this expression with polynomials? (m^2+m+1) * (m^2-m-1) * (m-1) - 2m (m^2+1)

If a cylinder with the volume of 785 cm was filled 50% of its capacity, how much water would it contain.

Is 3z monomial, binomial or trinimail?

Factor the expression. 3x2 + 14x-5

What is y + 1/5 = 3x in standard form?

Does anybody know what an outlier

Mark had 285 pencils in five boxes. He needed to put an equal number of pencils in each box. use the area model below to find the number of pencils mark will put in each box.

3. In an election, about 500,000 people voted in all. hat could be the exact number of people who voted in the election?