Which expression is equivalent to (18x + 9k) + (2x + 6k)? O 16x+3%
O 20x+ 15%
O 20X+ 16k
O 36x+54K

Bring the fraction a/a-4 to a denominator of 16-a^2

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

Fill in the missing exponents in each box and show how you found the answer. (4 points: 2 points for each correct answer with work shown) c. (9^4)^? =9^1 d.(5^? )^3=5^1 *question marks represent the boxes