What’s the correct answer for this question?

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?