Choose the algebraic expression that best matches this verbal description: "the sum of 3 and 7 times a number x

a 3 - 7x

b 3 + 7x

c 3*7x

d 7x - 3

By what percent will a fraction decrease if its numerator is decreased by 40% and its denominator is decreased by 25%?

Factor completely x^2+4x-32 (x + 8) (x - 4) (x + 8) (x + 4) (x - 16) (x - 2) (x + 16) (x - 2)

A math class has a total of 31 students. the number of males is 15 more than the number of females. how many males and how many females are in the class?

The sizes of seven exterior angles of an octagon are: 42, 110, 13, 67, 55, 11 and 53. What is the size of the eighth exterior angle?

Becca has a biscuit recipe that uses 2/3 of a tablespoon of salt for every 3/4 of a cup of flour. In order to have enough biscuits for her family that is visiting, Becca is making a batch of biscuits using 3 cups of flour and how many tablespoons of

Madison bought an ice cream treat and a bottle of water for $10. cayla purchased an ice cream treat and two bottles of water for $14. use your equations to find the price of a bottle of water and an ice cream treat. write a system and solve

Bill earned 40 dollars. He lost 10 dollars. How many does he have left?

Which values are solutions to StartFraction k minus 3 Over 4 EndFraction >-2? Select two options. k = - 10 k = - 7 k = - 5 k = - 1 k = 0

What is the expression for 40 more than twice the quotient of two amounts

The front podium is in the shape of a trapezoid with base lengths 4 and 8.5 feet. The height is 2 feet. A gallon of paint covers about 350 square feet. How many front frames of a podium can Lillian paint with 2 gallons of paint?