How do you solve for x on this problem?

3x=7.5

What 2 numbers multiplied together equals 20 and add up to 19

Simplify the expression x^-4*y^3*x^4*y^2.

A student solve this problem and said it was 4 miles Dave is walking. to the store 2 6/8 miles from his house. David has already walked 1 1/4 miles. how much farther does David have to walk. is the student answer reasonable?

A Ferris wheel with a radius of 13 m is rotating at a rate of one revolution every 2 minutes. How fast is a rider rising when the rider is 18 m above ground level?

one bar of candy A and two bars of candy B have 778 calories. Two bars of candy A and one bar of candy B contain 785 calories. find the caloric content of each candy bar

What is 3060 divided by 36?

In the local coed softball league the male to female ratio is 6:6 if there are a 160 players in the league how many are female

A car travels 3 hours at 50mph; then travels 40mph for 7 hours. How many miles does it travel during the 10 hours?

A total of 449 tickets were sold for the school play. they were either adult tickets or student tickets. there were 51 fewer student tickets sold than adult tickets. how many adult tickets were sold?

The price of 1kg of apples is 0.85$. What is the price of 200 grams of apples?