7. the students in ms. chang's class decide to
order water bottles that advertise the walkathon.
maliik obtains two different quotes for the costs
of the bottles.
fill it up charges $4 per bottle.
bottles by bob charges $25 plus $3 per bottle.
a. for each company, write an equation maliik co
use to calculate the cost for any number
of bottles.
b. on the same set of axes, graph both equations from part a. which variable is the independent variable? dependent?

this was already solved by me with a different person. if you look it up in the search bar at the top of the page, you will get the answer.

step-by-step explanation:

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it

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.