Answer:
A and D
Step-by-step explanation:
One side-base right triangle and one angle-based right triangle.
Always
a=b
subtract c from each side
a-c = b-c
Answer:
Part 1) 1,560 words
Part 2) 161 miles
Step-by-step explanation:
Part 1) 130 words in 5 mins. How many words in an hour?
Remember that

so
using proportion
Find out how many words in 60 minutes (one hour)

Part 2) 322 miles in 2 hours. How many miles in 60 minutes?
Remember that

so

using proportion
Find out how many miles in 60 minutes

To divide 343 by 9, you will use the division algorithm.
The reason is because 343 is not divisible evenly by nine.
You know this because the sum of the digits, 3+4+3 or 10, is not evenly divisible by 9.
Therefore, 343 is not evenly divisible by 9.
2 + -9n = 56. -9n = 54. N = -6