f$1.($HOTCOLD$)$ The table lists the freezing and boiling point of several substances. Create a program that will accept a temperature as input. It should output all substances that will freeze or boil at that temperature. For example, at a temperature of $0$ the program should report that water will freeze and that oxygen will boil.

Substance Freezing Point $($F$)$ Boiling Point $($F$)$

Ethyl Alcohol $-173172$

Mercury $-38676$

Oxygen $-362-306$

Water $32212$

$5$ points $-$ correct input

$20$ points $-$ correct output each substance at any temperature

$`2.($WIDGET$)$ The XYZ company sells only one product called the Widget. Create a program that will accept the number of widgets a customer wants to buy and output the total cost of the order. The cost of a single unit is $10$ dollars. For $2$ to $4$ units the cost per unit is $9$ dollars. For $5$ to $9$ units the cost per unit is $8$ dollars. For $10$ and over the cost is only $6$ dollars per unit.

$20$ points $-$ correct output for each of the $4$ discount levels

$5$ points $-$ user friendly input $/$ output

$3.($DROP$)$ Write a grading program that will accept a student name and three numeric grades as input. Grade values should be between $0$ and $100.$ It should output the name and grade average. $***$The program should drop the lowest grade.

$20$ points $-$ correct inputs

$20$ points $-$ correct average output