A rock is thrown from the top of a tall building. The distance, in feet, between the rock and the groundt seconds after it is thrown is given by d = - 16t^2-2t+ 733. How long after the rock is thrown is it 400 feet
from the ground?
37/8 s
b. 45/8 s
c. 11/2 s
d. 9/2 s
a. 37/8

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

It says factor each expression 49x-28?