Solve the systems of linear equations using substitution 1.x-4y=-10 2.a-3b=24
2x+y=-11 a+2b=-16

3.4j-5k=27 4.m+n=-3
k=j-7 m-4n=27

Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Aphrase is shown read the phrase and give me the answer