1. a child launches a toy rocket from the top of a slide at the park. suppose the equation
-16t^2+28t+8=0
can be used to find how many seconds it will take for the rocket to hit
the ground.
a. write the equation in factored form.
b. use the zero product property to solve the equation. show all the steps needed
to find both answers.
c. explain how the solution relates to this situation.

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

Can someone tell me if these are correct?

There are a total of 75 students in the robotics club and the science club. the science club has 11 more students than the robotics club. how many students are in the science club?