Manuel is investing in new energy efficient roof shingles. the color and texture of the shingles keep cooling costs down in the warmer months. a box of shingles weighs nine and a half pounds. how many pounds of shingles does manuel have if he buys eleven boxes?

The sum of the product of 4 and x and the product of 7 and y is 61. the sum of the product of 12 and x and the product of 21 and y is 61. what are the values of x and y?

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

Find the slope of a line given the following two points