Find the lengths of the missing sides of the 30°-60°-90° triangle. a=? ft, b=? ft, c=12 ft

Abcd is a parallelogram find the valuse of x

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

How do i put 3(x+7) in distributive property