Answer:

Step-by-step explanation:

Speed of trucks= x speed of trains =x-30 A loaded
Answer:
6 number of seashells for 1 Summer. 21 number of seashells for two summers. 36 number of seashells for three summers. 51 number of seashells for 4 summers.
Step-by-step explanation:
15 substituted in for f and x is the the number of summers.
64% of 75 = 64/100 x 75 = 48 <==== answer
Answer:
72
Step-by-step explanation:
multiply by 16