Question

Is this correct? Help

Answer 1

Everything except for 4 is correct, number 4 is c.

Answer 2

3. Which of the following can find 76 / 4
The correct answer is A. (2*38) / (2*2)
because you are factoring 76 and 4 and factoring out a 2 from both of them. You can later eliminate the 2s to divide 38 by 2 which is a lot easier.

4. is correct. Good job!

5. Which of the following equals 10
Your answer:
${10}^{0}$
would not be correct because anything to the power of 0 is 1.
The correct answer is
${10}^{1}$
Because anything to the power of 1 is itself.

6. What is
$2 \frac{1}{8} +3 \frac{1}{2} + 2 \frac{1}{2}$
To add these fractions we need to have the same denominator and we do this by finding to LCD- the lowest commen denominator which is 8 in this case.
$3 \frac{1}{2} = 3 \frac{4}{8}$
$2 \frac{1}{2} = 2 \frac{4}{8}$
The we can easily add up these fractions
$2 \frac{1}{8} + 3 \frac{4}{8} + 2 \frac{4}{8} = 8 \frac{1}{8}$
The correct answer is D. 8 1/8 ft