Mary and Greta live 21 miles apart. At 1:00 P. M. they start riding their bicycles toward each other and meet a
1:45 P. M. If Greta's average speed is 4 miles per hour
faster than Mary's average speed, find Greta's average
speed.

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

idk

step-by-step explanation:

i don't know

unless if u could do my questions, if not i wouldn't want to

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a