3 angles on a straight line.
angle 1 is 6x+12
angle 2 is 8x-10
angle 3 is y
Find x

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.