This Equation has only one solution 5(x-1) +3x = 7(x + 1) its an emergancy

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.