To train for an upcoming marathon, Alvin runs 9 miles a day. If Alvin runs 9 miles every day for 30 days, how many total miles will he run? im sorry for the spam but i have a 56 in math

Solve the system by the elimination method. 3x - 2y - 7 = 0 5x + y - 3 = 0 to eliminate y, the lcm is 2. which of the following is the resulting equations? 1.3x - 2y - 7 = 0 5x + y - 3 = 0 2.3x - 2y - 7 = 0 -10x - 2y + 6 = 0 3.3x - 2y - 7 = 0 10x + 2y - 6 = 0

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.