Shandra claims it will take them about 50 minutes working together because 50 is the mean of 40 and 60

answer: yes that is correct.

step-by-step explanation: mean is adding the numbers up and then dividing by how many numbers there are. you would add 40 and 60 then divide by 2 you would get 50. she is correct.

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!