Answer:
I believe it is 7
Step-by-step explanation:
$2.6
12/4=3 that means each paintbrush cost $3
3.20/8=0.4 that means each pen cost $0.40
3-0.4=2.6
a/2 = 9
$t=26.47$
i took test and got it right
17.606
root of 310 = 17.606