The answer is 5:) you first have to cross multiply then divide both sides from x
He can ride his bike 105 km. 30/2 is 15. 15*7 is 105.
:D
Answer:

• subtract eqn(b) from eqn(a);

• find x :

Volume of a square pyramid when the area of the base is known is area x height/3
Volume = 48 x 8/3 = 128 cubic cm.
Answer:
Step-by-step explanation:
the unit is 4 min and the answer is he can type 55 words in 1 min