Robert threw a rock off a bridge into the river. The distance from the rock to the river is modeled by the equation h= -16t² - 16t + 60, where h is the height in feet and t is the time in seconds. Find how long it took the rock to enter the water.

step-by-step explanation:

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation:

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it