-40) No
0) No
-5) No
13) Yes
21)Yes
80/100 x 30 = 24 because you just multiply percents
Answer:
B.40
Step-by-step explanation:
To solve this, set up the equation, 90% of x being .9*x=57. Then, solve for x, x=57/.9=

=6.333
Answer:
no no yes yes
Step-by-step explanation:
took the test