Answer:
the tax would be $2.70
Step-by-step explanation:
FIrst you would make the tax in decimal form then multiply the decimal with the cost, then you wil get the tax
B - 3/4 = 7/10
add 3/4 to both sides to isolate the b
b = 7/10 + 3/4
b = 28/40 + 30/40
b = 58/40
b = 1 18/40
b = 1 9/20
Supplementary angles are 180 in total, so to find the answer you do 180-10, which equals 170. The answer is 170
