Answer:
how many teams are there?
Step-by-step explanation:
Answer:

Step-by-step explanation:
Using the rule of exponents
×
⇔
, thus
×
=
= 
The midpoint is (-2, -6). You need to find the mean of x coordinate and the y coordinate.
Answer:
60 km/hr.
Step-by-step explanation:
When Dad caught up the the time he had been driving was 4 hours and the time Mom had been driving was 1 + 4 = 5 hours.
They both drove the same distance, d km.
For Dad:
speed = d / time
75 = d / 4
d = 75 * 4 = 300 km.
Mom took 5 hours to travel this distance, so
Mom's speed was 300 / 5 = 60 km/hr.