Answer:
c
Step-by-step explanation:
Answer:
40 I told u
Step-by-step explanation:
right angles are 90 degrees
42.8 in
Step-by-step explanation:
Step one:
given data
we are told that the expression for the depth of a lake after x years is given by
Required
The value of y when x= 4
Step two:
substitute the value of x in the expression to get y
After 4 years the depth will increase by 42.8 in