Answer:
Second option
Step-by-step explanation:
Given the following question:

In order to find the answer, we will apply the fraction rule.



Not the third or fourth option because negatives do not equal a positive. It's also not option A because....

Your answer is indeed the second option.
Hope this helps.
Answer:
50 minutes
Step-by-step explanation:
Given:

Since Emily only practiced on Monday and Wednesday, the sum of time on both days is the time Emily practiced on the piano for a week.

<u>Substitute the times in the equation</u>

<u>Simplify the equation</u>



Answer:
70, 130
Step-by-step explanation:
Just took the Mastery test on PLATO and this answer was correct.
Answer:
1 st questions answer is third option
while the answer of other question is 3
Step-by-step explanation:
2nd qestions explanation
put value of x=2 in equation as x-2=0 from equation
(2)^3-6(2)^2+a2+10=2
8-24+a2+10=0
2a=-18+24
2a=6
a=3