48 i know because i used a calculator
Point slope is y-y1=m(x-x1) where m is slope and x1 and y1 are the given x and y values.
y-(-1)=-3(x-7)
y+1=-3(x-7)
Final answer: B
Answer:
You would win the race
Step-by-step explanation:
You would have to swim for 2 minutes and 40 seconds which is the same as 160 seconds.
The opponent would swim

Which is161.5 seconds
This means you would win