How do you know that △STU is similar to △PQR? Complete the sentence to explain your answer. HELP ASPAP!

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4