Which ordered pair is the solution of the equation ?

y= 4x - 7

A. Only (2,1)
B. Only (4,9)
C. both (2,1) and (4,9)
D. neither

1. are the triangles similar and if so why? what is the value of x? show your work.

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?