$3\mathrm{.}2$ raiseMyGrade

Function Name: raiseMyGrade

Input:

$($double$)$ Score on Test$1$

$($double$)$ Score on Test$2$

$($double$)$ Score on Test$3$

Output:

$($double$)$ The score needed on Test $4$ to have an $90$ average

$($logical$)$ Logical value indicating if the score can be a $90$ if the maximum for Test $4$ is a $100$

Description:

Write a function called raiseMyGrade that takes in $3$ test scores and calculates the score needed on Test $4$ to have an overall average of $90.$ Additionally, output a logical value indicating if$,$ given that the maximum value for Test $4$ is a $100,$ an overall average of $90$ is possible.

Examples:

score $1,log1$ raiseMyGrade $(100,80,90)$

$$ score $1=90$

$log1=$ true

$[$score$2,log2$ raiseMyGrade $(80,90,95)$

$$ score $2=95$

$log2=$ true

$[$score $3,log3$ raiseMyGrade $(80,85,80)$

$$ score $3=115$

$log3=$ false