Ethan and his sister Samantha have each saved $17.47. They put their money together and used 1/4 of it to buy a game. How much did they spend on the game?

if rounded to the nearest 100th it is $8.74

Step-by-step explanation:

17.47 x 2 = 34.94

25% of 34.94

= 8.745

Nearest 10th : 8.7

Nearest 100th : 8.74

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.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm