Answer:
1. Yes the parentheses are necessary. To find a fourth of her regular hours you must find the total amount she works during her regular hours.
2. 6
Step-by-step explanation:
(For the second question)
4+8= 12
12 × ½ = 12 ÷ 2
12÷2 = 6
Answer:
79
Step-by-step explanation:
4(13)+3(9)
52+27
79
Just use the formula:

Then, plug in numbers:

And that would be your answer: 3/5 is the slope.
I dont know
Step-by-step explanation:
I dont know this because this picture doesn't dose not show me the measure of 23