One fifth of a number is 8. what is the number

What is the product of 1.7 × 10–13 and 3.5 × 1025? (5 points) 1.8 × 1012 2.06 × 1012 3.5 × 1012 5.95 × 1012

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?