You will have to figure out the last equation but here is the rest:
Answer:
t<45 mins
Step-by-step explanation:
If to qualify you must finish in less than 45 minutes, this simply means your time has to be less than 45 so it would be t<45 mins. If it had said in 45 mins or less, it would say t is less than or equal to 45 but that's not what we have here.
A) 3
b) 25
Look at the picture that I attached for the steps.
Find (-4) on the number line and move 3 to the right. You will end up at (-1).
Find (3) on the number line and move 4 to the left. You will end up at the same value of (-1).
This relative frequency is an experimental probability: that of getting a red on a spinner. In 300 spins, we'd expect to get 0.4(300), or 120, reds.