The answer is C. 90 degrees.
This is because angle R is one of the four angles of a square.
I hope this helps.
230% in the simplest form is 2.3
Answer:
sou do Brasil dcp ;-;kssskskksk
Answer:
30 mins
Step-by-step explanation:
<em>speed = distance/ time </em>
speed of car A
= 20/ 12 km/ min
= 5/ 3 km/ min
also, speed of car A = speed of car B
speed of car B = 5/ 3 km/ min = 50km / time taken (in mins)



=> t = 30 mins