Acircle has a diameter of 14 meters. what is the circumference?

1. what is the measure of ∠abc? what is the measure of ∠abd?

Find the distance between the point (-3,-4), and (see the picture below)

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters