Find the product
–5r3(2r2 – 3r – 5)
a) –10r5 – 15r4 – 25r3
b) –10r5 + 15r4 + 25r3
c) 10r5 – 15r4 – 25r3
d) –10r6 + 15r3 + 25r3

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Find the value of x. round the length to the nearest tenth