Answer:
2 years
Step-by-step explanation:
90 in 1 year, 180 in 2 years
1. 500
2. 2,286
1. $250 divide by 0.5
2. 762 times by 3
Hey there!!
Always remember -
wave length = velocity / frequency
Now substitute the values
Wave length = 10 / 4
Wave Length = 2.5 m