The total number of problems she needs to grade is 6.
Answer:


Step-by-step explanation:
1) y + 4 + 3(y + 2)
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Combine like terms:-


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2) 0.5(x⁴ - 3) + 12
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Add/Subtract Numbers:-

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Answer:
75 each month
Step-by-step explanation:
578-128=450
450/6=75
Answer:
b
Step-by-step explanation:
Answer:
3 / 4 * 50 = 150 / 4
= 37.5 or 37½ yards
Step-by-step explanation: