Answer:
18. C. $901
19. A. 7 in., 10 in., 16 in.
Step-by-step explanation:
18.
The price is 100% of the price since 100% means the whole amount.
Tax is 6% of the whole amount. When you add 6% to 100% you get 106%.
The price plus tax is 106% of the original price.
106% of $850 = 106% * $850 = 1.06 * $850 = $901
Answer: C. $901
19.
A. See if a^2 + b^2 equals c^2
a^2 + b^2 =
= 7^2 + 10^2
= 49 + 100
= 149
c^2 = 16^2 = 256
a^2 + b^2 = 149
c^2 = 256
Since a^2 + b^2 is not equal to c^2, the triangle is not a right triangle.
Answer: A. 7 in., 10 in., 16 in.
