At higher elevations water boils at lower temperatures. the temperature at which water boils is called the boiling point of water. at sea level the boiling point of water is 100oc, while at 2 kilometers of elevation (about 6550 feet) the boiling point of water is 94oc. the function that gives the boiling point of water in oc, b
b
, at an elevation of x
x
kilometers is b(x)=100−3.5x
b(x)=100-3.5x
.
determine the elevations at which the boiling point of water is between 84 oc and 88 oc. give your answer accurate to 1 decimal place.
the boiling point of water is between 84 oc and 88 oc when the elevation is between

Math i have no idea how to do a and b

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)

The following figure shows four lines intersecting at a point. in a complete sentence, describe the angle relationship in the diagram. write an equation for the relationship shown in the figure and solve for x and y. confirm your answer by measuring the angle with a protractor