The sides in each pair of figures are proportional. Find the missing length.

∆red ≅ ∆ by rule will give brainiest if possible

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

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?