According to the strategy you learned in this lesson, what is the best first step in solving the system of equations above using substitution?

$12. that is my answer.

the answer is d on edge

step-by-step explanation:

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

h * s * a

h = history teacher

s = science teacher

a =   art teacher.

i see no data table, but just multiply the number of history teachers, science teachers, and art teachers.