Jazlyn recorded the growth of a
plant over 16 weeks. The equation
y = 0.28x + 7 represent the
height (y) in inches over the time
(x) in weeks. How tall would the
plant be after 4 weeks?
8.SP.3

7.284 inches

7.56 inches

8.12 inches

12.34 inches

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