Solve 4r2 – 9 = 91.
a: {±3}
b: {±4}
c: {±5}
d: {±6}

b

Step-by-step explanation:

subtratc , find the value of R .

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

overpriced

step-by-step explanation: