Each of the following describes a variable expression. The area of a rectangle that is (x + 2) units long and 4 units wide.
1.
4(x + 2)
The perimeter of a rectangle that is (x + 3) units long and (x + 1) units
2. wide.
2(x + 3) + 2(x + 1)
The volume of a rectangular prism that is 2 units long, 1 unit wide,
3. and (2x + 4) units high.
2(1)(2x + 4)
Which variable expressions are equivalent?
O A 1 and 2
OB. 1, 2, and 3
OC. 2 and 3
O D. 1 and 3

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

overpriced

step-by-step explanation:

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.