factor the sum of terms as a product of the GCF and a sum 4x + 12

I understand these problems with no variables, but how do you solve with a variable in the problem?

Find the GCF of 20 and 30. 2 5 10 15

The swim club rents the municipal pool for a flat fee of $500 plus a charge of $75 per swimmer during the summer months.

If jammy makes 4 baskets in 1/2 of an hour how much can she make in 5 hours

At an ice skating rink, there are 22 people who know how to ice skate and 18 people who do not know how to ice skate. What is the ratio of people who know how to ice skate to people who do not know how to ice skate?

Which value for x makes the open sentence true? 6 • 7 - 5x + x2 ≥ x3 + x2

There are 2.54 centimeters in an inch. when using this conversion factor, how many significant figures are you limited to?

How many 4 letter words can be formed from the alphabets?

What is the common factor of this term 6xy^2 = (3x) (?)

16 increased by twice a number is - 56

What is the power of 1,000,000 with a base of 10