Angela has a marbles, brian has twice as many marbles as angela, caden has three times as many marbles as brian, and daryl has five times the number of marbles caden has. if in total angela, brian, caden and daryl have 78 marbles, what is the value of a?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

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.

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.