Answer:
This is a acute angle in the digits 1,4,6 should help the answer is acute
Answer:
19.) 
20.) 
21.) 
22.) 
Step-by-step explanation:
Glad to help
--Chris Jackson [High School Junior: Calculus Senior Honor Student]
I do believe the answer is D
Well $25 is the standard price initially.
$10 is added every hour as a constant rate.
Therefore a. 25 + 10h is the right expression
Multiply the top one by 3 for x, so you can eliminate x and find y
then plug in the y into one of the equations to find x