What is the sum or difference?
a. 5x4 + 4x4
b. 12x5y − 9x5y

a. 9x^4

b. 3 x^5y

Step-by-step explanation:

a. 5x^4 + 4x^4

Combine like terms

9x^4

b. 12x^5 y − 9x^5 y

Subtract like terms

  3 x^5y

u dumb boi

step-by-step explanation:

75

step-by-step explanation:

you do x-29=46 (the number of cantaloupes sold)

in order to find x, you have to find what minus 29 equals 46, meaning you'd have to add 29 to 46.

29+46=75

if you replace x with 75, the equation looks like:

75-29=46

x=75