Answer:
$12.50
Step-by-step explanation:
(-2 + 0.8) ÷ (1²-1.3) =
(-1.2) ÷ (1-1.3)
(-1.2) ÷ (-0.3)
= 4
Answer:
6.32456
Step-by-step explanation:
Y=.3x+25(z) z= number of days
y=.3(50)+25(1)
y=15+25
y=40
Answer: 70
Explain:
80*5 = 400
this tells us that the total scores before
dividing must be 400
400 - (78+88+83+81) = 70
this tells us that we lack +70
in conclusion, to get an average of 80% on Sara's test scores; She must receive a grading of 70% in her next test.
