The average of all five of Carlos's test grades is exactly 84. The average of his first three grades is exactly 80. What is the average of his last two test grades? HELP HELP HELP. PLS TELL ME HOW YOU GOT THIS.

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

The table shows the age and finish time of ten runners in a half marathon. identify the outlier in this data set. drag into the table the ordered pair of the outlier and a reason why that point is an outlier.