The expression 6x+15 represents the total cost of a bicycle rental. when danny rents a bike for 2 hours, the total cost of his rental is $27. what does the coefficient 6 represent

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

How to do this , and can some one explain

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.