Choose values for a and b so that the system of equations shown has infinitely many solutions. y = ax + 5 and y = 7x + b*

A: a = -7, b = -5

B: a = 7, b = -5

C: a = -7, b = 5

D: a = 7, b = 5

10

step-by-step explanation:

7+3=10

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation: