Alice is doing a project for her science class. She spends 3/2 hours collecting data, 3/4 hour analyzing her data, and 4/5hour creating a poster with her results. In total, how many hours did she spend working on her science project? Express your answer as a fraction in simplest form

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

d

step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!

2 1/2 feet

step-by-step explanation: