M - n + y = -2 -3 + 10 =5 Halle el valor numérico de la siguiente expresión me ayudan porfa ​

2x+3y=12 x-y=6 solve the following system equations

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.