The temperature in Mariah’s town was 5.2 degrees Fahrenheit at midnight. The temperature decreased at a steady rate of 1.1 degrees Fahrenheit per hour until 7:00 a. m. From 7:00 a. m. through noon, the temperature increased by a total of 4.9 degrees Fahrenheit. What was the temperature at noon? Negative 7.4 degrees Fahrenheit
Negative 2.5 degrees Fahrenheit
2.4 degrees Fahrenheit
7.4 degrees Fahrenheit

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!