Answer:
6
Step-by-step explanation:
y=mx+b
93.40=8.40x+43
the 93 is the amount we want to get to, 8.40 represents the value of each sign and the 43 is the original cost
just dbc I believe. all of the good lucks c:
x^2-4/7x-12/49=0
x= 6/7 and -2/7
Just finished the test :D. The answer would be -31 1/3
HOPE THIS HELPS :D