If there is 27 marbles in a bag and the amount of red marbles is 5 less than 3 times the amount of blue marbles how many marbles are blue and how many are red

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

The graph of y=x3 is transformed as shown in the graph below. which equation represents the transformed function?