Write an equation and solve: twice a number, increased by 3 is 7.
a) 2
b) 5
c) 8
d) 20

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180