EASY QUESTION PLEASE HELP!!
In a city school, 60% of students have math class, 55% have science class, and 35% have math and science class this semester. What is the probability (rounded to the nearest whole percent) that a randomly selected student will have science class this semester, given that the student is in math class?
58%
20%
80%
64%

  58%

Step-by-step explanation:

Out of 60 students who take math, 35 of them will also have science. The desired probability is ...

  35/60 = 0.58333... ≈ 58%

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More formally, ...

  P(S | M) = P(S&M)/P(M)

  = 35%/60% = 7/12 ≈ 58%

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.