Select the correct answer.
the function m(s) +225 +0.65s represents the material cost of manufacturing gardening scissors when s scissors are produced. the function
l(s) = 54 + 1.15s represents the labor cost for producing a scissors. which expression correctly represents the manufacturing cost per scissors?
a. 171-0.50
ob. 279+1.805
c. 279 + 1.80
d. 171 - 0.505

279+1.80s

Step-by-step explanation:

If we add the material cost to the labor cost, this would give us the manufacturing cost.

M(s)+L(s)=(225+0.65s)+(54+1.15s)

We will not combine like terms.

(M+L)s=225+54+0.65s+1.15s

Simplify.

(M+L)s=279+1.80s

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.