Shes is wrong because 30% of 80 is 24
Answer:
.92
Step-by-step explanation:
sin A = opp side/ hypotenuse
We can use the Pythagorean theorem to find the hypotenuse
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
3^2 +7^2 = AC ^2
9+49 = AC ^2
58 = AC^2
Taking the square root
sqrt(58) = hypotenuse
sin A = 7/sqrt(58)
sin A =.91914503
sin A = .92
Answer is 73 over 36...in a decimal its 2.03
There has to be a table of some sort, but if not I would say go with the largest can, because usually the bigger the item, the lower the unit rate is.
