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

20x + 15k is the answer we just have to remove the bracket and add the terms

hope it helps

20x + 15K

Step-by-step explanation:

just add like variables (x and Y)

25% is the answer

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94