Answer:
90
Step-by-step explanation:
Think of 5(18) as 5(10+8). This is easily done mentally: 50 + 40 = 90.
Answer:
16.4% increase
Step-by-step explanation:
284-244= 40
40/244= 0.1639
0.1639 × 100= 16.4%
i think its B because its not arranged to give y=mx+c. if not its probably d
Answer:

Step-by-step explanation:
Use the Pythagorean theorem a^2 + b^2 = c^2
In this case you are given a and c, so set the equation up like
2^2 + b^2 = 8^2
b^2 = 8^2 - 2^2
b =
b =