Answer:
1 19/21
Step-by-step explanation:
12/21+1 +7/21
19/21+1
A a dilation and reflection
dilation will make bigger or smaller therefore it cannot be congruent
Answer:

Step-by-step explanation:

•you divide both sides by 21 to leave x alone
Answer: 5
hrs
<u>Explanation:</u>
Jasper:
per hr
Yolanda:
per hr
Together:
per hr
Jasper + Yolanda = Together
+
= 
+
= 
3x + 21 = 7x
21 = 4x
= x
