That is not a question so I can't help you but combined she did 7/4 or 1 3/4 hours
A(n)=a+(n-1)d
A(40)= -1+(40-1)-4
A(40)= -1+39(-4)
A(40)= -1+(-156)
A(40)= -157
Answer:
2.056
rounded to the nearest tenth: 2.1
Plz mark brainliest!! :DD
Answer:
1). 1.25 / 250 = .005M
.005 = 1 liter
2). (20)(.5) = 10M
have a good day, and be safe
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