Every year Beth doubles the amount of money she donates to charity. She donated $1 to charity at age 10.
How much money will she donate at age 20?
A. $21
B. $41
C. $512
D. $1,024

D

Step-by-step explanation:

l = a * r ^ (n - 1)

n = 11

a = 1

r = 2

L = 1 * 2^(11 - 1)

L = 2^ 10

L = 1024

u what ?

step-by-step explanation:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions