Melanie spent four hours babysitting. She charges $16 up front and then an additional charge per hour. The total amount she earned can be represented by the expression $4x + $16. What expression represents the amount she earns each hour? Please give me the expression.. if u just say i don't know i will report ;)

She earns $4 x is representing the hours.

Step-by-step explanation:

16 is the charge up front.

I can infer that the additional charge is $4 because x represents the hours because we don't know how many hours she's going to spend there.

Hope this helps! <3

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.