Which pair of expressions has equivalent values?

first one

Step-by-step explanation:

first one

1^13 = 1

1^15 = 1

P.S.

1 to the exponent of any number is equal 1

1¹³ and 1¹⁵

Step-by-step explanation:

The answer does not change however we add or reduce the exponents. This is the uniqueness of the integer 1. When the others are tried, 6¹=6 and 9¹=9

7⁸=5764801 and 8⁷=2097152

9²=81 and 4³=64

Therefore the integer 1 is the only number that is not affected by exponents.

76%

step-by-step explanation:

24% are dogs and the remaining is 76% because 100-24=76

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0