. Find the sum of the following polynomials. 1. 10mn and -15mn
2. -7a
2
and -8a
2

3. 6(x+3) and -7(x+3)
4.
1
4
ab and -
1
4
ab
5. 0.5 xyz and 1.5 xyz

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay