C. 14. there are 40 questions in a competitive exam. 4 mark's awarded for each correct answer while -3 marks are being deducted for each incorrect answer .if donald attempts question and answered 21 questions correctly, how many marks did he get? one of his friend getonly 15 answers correct. what will be his score?

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

c

step-by-step explanation:

there is vertical asymptote at x = 2 and x = 0

vertical asymptote occurs at the points where the denominator is 0. so we can say that

x = 2 occurs when there is a factor (x-2) in the denominator, and

x = 0 occurs when there is a factor "x" in the denominator

thus, the denominator of the equation would have "x * (x-2)", this is option c only. that's the correct answer.

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2