There are 26 students in an algebra class. the number of girls in the class is one less than twice the number of boys. how many boys are in the class?answer

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)