If each of the 28 students made at least $25, you would multiply 28 and 25 together to obtain the least amount of money the class raised. That gets, 28x25 = 700. The class made at least $700.
Answer:
A. t(x) = 450 - 0.06x
Step-by-step explanation:
The layer which is originally 450 m thick is decreasing by 0.06 m.
450 - 0.06
... per day. x represents days.
0.06x
So,
450 - 0.06x
the dependent variable, as its name says it depends on the other variable
and the independent variable is the one that we can control or vary
the independent variable is the detergent because it is what we change or vary
and the dependent variable is the effect of the detergent since that is what we get
