An indoor trampoline park has an admission fee, plus an hourly charge. the graph displays the total cost from 3, 4, 5, and 6 hours of play. determine the hourly charge, assuming the relationship is linear.

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.

Given: ab ≅ cd and ad ≅ bc prove: abcd is a parallelogram. statements reasons 1. ab ≅ cd; ad ≅ bc 1. given 2. ac ≅ ac 2. reflexive property 3. △adc ≅ △cba 3. ? 4. ∠dac ≅ ∠bca; ∠acd ≅ ∠cab 4. cpctc 5. ∠dac and ∠bca are alt. int. ∠s; ∠acd and ∠cab are alt. int. ∠s 5. definition of alternate interior angles 6. ab ∥ cd; ad ∥ bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3? triangle angle sum theorem sas congruency theorem sss congruency theorem cpctc