Me pueden ayudar con este problema, el tema es TRIGOMOMETRIA Hallar la longitud de la sombra de un árbol de 12 m de altura cuando los
rayos del sol forman con la horizontal un ángulo de 20º. (TRAZA EL
TRIANGULO QUE SE FORMA Y ANOTA LOS DATOS).

If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.