Describe the rule of this function, and find the missing number

8-->15

6-->11

10-->19

4-->?

Match each statement with the algebraic expression that models it. A. the price of a winter coat and a 20% discount 1. x+0.02x=1.02x B. the base salary of an employee and a 2% salary increase 2. x-0.20x=0.80x C.

The area of a rectangle is 4 square feet the rectangle is 2 feet long what is the perimeter of the rectangle

Evaluate: 12!/8! (permutations)

What is 3/4 foot long x0.5

Mr. Townsend needs to make 13 pairs of butterfly wings for costumes for a play. Each pair of wings is made with ¾ yard of fabric. The fabric costs $8 per yard.

What is 5 + (3y x 5x)

What is the minimum possible value for y in the equation y = x^2 + 12x + 5?

State if the three sides lengths form an acute, obtuse, or right triangle: 6 mi, 14 mi, 17 mi a acute b obtuse c right

4 - 2b = 2 What is the value of b

Jenny is eight years older then twice her cousin sues age. The sum of their ages is less then 32. What is the greatest age that sue could be