Math help urgent
posted by Louis .
I have a few questions that i need help with so can someone pleese help me thanks:)
1. represent each with an ineqaulity
a.) time spent on the activity can be at most 13 mins
b.) the volume of the container must be a minimum of 1.8 L and a max of 2.5 L
2. in canada by law any product sold as a nutritional supplement or meal replacement must provide a minimum of 225kcal of energy per serving
a.) if c represents the energy content of one serving write an inequality to represent this regulation
3. Danlielle's track coach tells the team that to be considered for the 100 meter race a runner has to be able to run 100m in less than 13s. draw and lable a numer line to repsent this.
4. on saltspring island in british columbia the height of the tide varies one day from a low of 0.8m to a high of 3.2m
a.) what type of ineqaulity do you need to use to show the range of tide heights
b.) express this situation algebraically
thank you so much :)

This should give you a start.
1a. tÂ ≤ 13
1b. 1.8 ≤ v ≤ 2.5