Kirk used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 4 and the second equation by another number to eliminate the x-terms. what number did kirk multiply the second equation by? -0.25x-6y=3 0.2x+0.6y=12

Complete the steps to find 4.830 ÷ 5

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?