How many solutions exists for the system if equations graphed below?

A- none
B- one
C- two
D- infinitely many

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Can you me find the slope! (30 points)