Find the unknown sizes of angles in the following ​
a°
2a°
(a+10)°

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Which of the following equations is equivalent to x/3-6/x=1