Find the measure of the angles of the triangles below. Show your work

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.