If 5 students each bought in a boxes with 10 pencils per box and 10 students bought in eight boxes with five pencil per box how many total points did the students bring in

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte