R(x) = 150/(x^2 + 1)
gives the monthly revenue in millions x months after an ad campaign. In how many months will the revenue be 30 million?
A) 2 months
B) 4 months
C) 6 months
D) 8 months

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling