Write an expression for "the sum of d and 9

Sum means to ADD in the math world

Step-by-step explanation:

So your answer would be d + 9

first one because it can't have a fraction in it

step-by-step explanation:

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!