The expression 20a + 13c is the total cost for a adults and c students to enter the Miami Science Museum. Find the total cost for four adults and 24 students

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Tom drove 206 miles in 3.9 hours. estimate his average speed.

Acompound inequality is graphed, and its graph consists of all real numbers. which open scentence could have resulted in this solution set r> 3 or r< -2. r< 3 or r< -2. r> 3 or r> -2. r< 3 or r> -2 plz asap