Answer:
seven more than four times a number is fifteen - 4n+7=15
one-fourth the difference of a number and 15 - 1/4 (n-15)
one fourth a number decreased by 15 - 1-4 n - 15
the quotient of a number and seven is four - n divided by 7 = 4
a number raised to the power of four increased by 7 is 15 - n to the power of 4 - 7=15
Explanation: