Ms. Cathy bought a package of pencils. Out of every 10 pencils, 5 are black. If there are 50 pencils in the pack, what fraction of the pencils in the pack are black? What percent of the pencils in the pack are black?

What fraction of the pencils in the pack is black?

What percent of the pencils in the pack are black?

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?