If angle a and angle b are supplements and measure angle a =150 what is the measure of angle b

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

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.