The sum of three times a number n and 8 is no more than 25

Step-by-step explanation:

The question is an Algebra type of question. Before I learned Algebra, I usually just did as the question asked, I thought about what it meant. However, we can easily find the number "n" by following it in Algebraic terms.

Step 1: Set up an equation

"the sum of three times a number n and 8 is no more than 25"

Three times a number, "n"

The sum means addition, so;

And 8. Combine;

No more than 25, which means that both of them combined would still not result in something greater than 25, so it is less than 25.

The Equation to solving the problem is . Now we just have to solve it.

Step 2: Solve the equation

Plus 8 minus 8 cancels out. So we are left with 25-8 = 17.

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.