(05.02) for the following system, if you isolated x in the first equation to use the substitution method, what expression would you substitute into the second equation? (5 points) −x − 2y = −4 3x + y = 12
a. −2y − 4
b. 2y − 4
c. 2y + 4
d. −2y + 4

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250