Determina sí cada triángulo amarillo es semejante o no al triángulo verde ∆ verde L= 10 , 12 , 16
∆ amarillo a L= 5 , 6 , 5
∆ amarillo b L= 4 , 6 , 7
∆ amarillo c L= 18 , 7.5, 16
∆ amarillo d L= 6 , 10 , 8
∆ amarillo e L= 20 , 24 , 32​

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Ineed to know the answer to this algebra question.

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?