What's the value of this algebraic expression 5x When x=7

On a map each inch represents 13.5 miles. what is the distance represented by 6 inches?

0.3 (4 - x) = x-1.4

Find the area (x=6) (2x - 3)

What is the answer A library contains 2000 books. There are 3 times as many non fiction books as fiction books. Write abd solve a system of equations to determine the number of non fiction and fiction books.

The Trapezoidal rule Tn on the interval [0,5) will be exact for all polynomial of degree at most Select one O A 5 OB. None C. 3 O 0.9 OE

89 (54x - 36) + 2 = - 3/4 (-40 + 16x) + 90xsolve for x

The ratio of cars to vans in a parking lot is 1 to 4. If there are 40 cars and vans in the parking lot altogether then how many vans are there?

Geoffrey's babysitter stayed from 6:25 P. M. until 10:40 P. M. For how much time does the babysitter need to be paid?

What is equivalent to 4b? A) b+2 (b+2b) B) 3b+b C) 2 (2b)

Find the value of x 58° 42°