Two-fifths (

) of the square of the number j (j²)
j²
<span>D=20+50t
120=20+50t
50t=100
t=2 hours
Domain of t from t=-(2/5)hr to t=2hr. Since they already drove 20 miles.
[-2/5,2]</span>
Answer:
Therefore,
There are Four i.e 4 terms in the expression,

Step-by-step explanation:
Algebraic Expression:
An algebraic expression is a mathematical expression that consists of variables, numbers and operations.
- Variables with the coefficient is called as Term.
- Number is also a term.
Here the Expression is

So,

In all there are Four i.e 4 terms in the given expressions.
Therefore,
There are Four i.e 4 terms in the expression,
