The sum of twice a number and 7 is 17.

The sum of twice a number and 7 means; 2n + 7

is 17 means; = 17

Put together; 2n + 7 = 17

Solve for n.

2n + 7 = 17

~Subtract 7 to both sides

2n = 10

~Divide 2 to both sides

n = 5

Best of Luck!

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation:

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .