Twelve people can build 30 chairs in 8 hours. how many chairs can the people build in 100 hours? a) 3.75 b) 100 c) 150 d) 375

Can someone with this one pre-calc question? the finishing time for a runner completing the 200-meter dash is affected by the tail-wind speed, s. the change, t, in a runner's performance is modeled by the function shown below: t= 0.0119s^2 - 0.308s - 0.0003 predict the change in a runner's finishing time with a wind speed of 3 meters/second. note: a negative answer means the runner finishes with a lower time. round to the nearest hundredth.

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base