The mean test score of 28 students is 72. A student joins the class and the mean becomes 71.
Find the test score of the student who joined the class.
Test score =

What is the inverse of the function f(x) = 2x + 1?

Find the missing variable for a parallelogram: a = latex: 32in^2 32 i n 2 h = b = 6.3 in (1in=2.54cm)

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?