a1=−4
ai=(ai−1)⋅2
Find the sum of the first 50 terms in the sequence.
A. −5.07⋅10^29
B. −4.50⋅10^15
C. −2.25⋅10^15
D. −1.50⋅10^15
PLEASE GIVE GOOD EXPLANATION

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

if she was to only spend a dollar she can get 1lb

step-by-step explanation:

you save $70

discount would be 35% off

step-by-step explanation:

5

step-by-step explanation: