Brooke needs a new computer. on friday, the computer was $200. on saturday, the price of the computer was $149. determine if there was a markup or markdown and by what percent. choose the answer that applies.
a- markup; 25.5%
b- markup; 34.5%
c- markdown; 25.5%
d- markdown; 34.5%

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?