Answer:
1 is C and 2 is B
Step-by-step explanation:
1. -7×3t−7×−9
2. -21t−7×−9
3. -21t−(−63)
Answer:
-21t + 63
Answer:
50 and 60 mph respectively
Step-by-step explanation:
Step one:
given data
total distance= 450 miles
time take= 9 hours
Required
Tom and Tammy's average speed
Step two:
Tom's average speed= 450/9
= 50 miles per hours
Tammy's average speed= 450/7.5
= 60 miles per hours
The answer is 3^12. i'd explain it but i took me seven minutes to do the the problem myself. :)
