1. La OMS identificó tres grupos en los que se divide la población colombiana para asumir la crisis pandémica provocada por el COVID-19 1. los que cumplen estrictamente las medidas representan el \( 20 \% \) de la población 2. los que cumplen relativamente las medidas representan el \( 30 \% \) de la población 3. el porcentaje restante no cumplen las medidas

Add and simplify. \( (-3+6 i)+(7+8 i) \)

Simplify. \( (7+2 i)^{2} \)

19. \( \frac{1}{6} x=\frac{1}{3}-y \)

Which equation represents a line which is parallel to the line \( y=4 x-3 \) ? \( \begin{array}{ll}\text { Answer } \\ \begin{array}{ll}x-4 y=-20 & \\ y-4 x=2 & x+4 y=12 \\ y\end{array}\end{array} \)

Susan deposits \( \$ 10,000 \) into an account that pays simple interest at a rate of \( 6 \% \) per year. Joe deposits \( \$ 10,000 \) into an account that also pays \( 6 \% \) interest per year. But it is compounded annually. Find the interest Susan and Joe earn during each of the first three years. Then decide who earns more interest for each year. Assume there are no withdrawals and no additional deposits.