If two lines intersect and create two angles adjacent to each other which measure 10x + 8 and 5x + 7, what is the value of x?

Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7

Given: ac and db are diameters. m∠3=

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?