A. seven tents b. seven hundredths c. seven tents
Answer: x + 27 = 17
Step-by-step explanation:
4(x+3) = 4x + 12
3(5-x) = 15 - 3x
4x-3x+12+15
x+27
The zero for -2x+10x-16 is positive 2
The number of bacteria in species A at time t is given by:

.
The number of bacteria in species B at time t is given by

You are asked to find N(t) which is the difference in the species at time t. Difference refers to the answer is a subtraction problem. Thus, we are asked to find N(t) = A(t)-B(t)
We subtract and obtain:

That is,

which is the last answer choice.
With respect to notation, it is common to denote an exponent using ^. So if we want to write

we can write "(.25t)^3"