The number that is missing is 83
18 = 2x +4
Subtract 4 from each side:
14 = 2x
divide both sides by 2:
X = 14/2 = 7 dollars per hour
4x-30= 50
mark me brainliestttt :))
Answer: That is a Acute angel and a Obtuse angel
Step-by-step explanation: I know that thats an Acute Angel because its shaped like one and looks like one and Acute angels are only 79% of Area. Than the 13 cm will be a 60% obtuse Angel.