Question 4 tes: Solving
limination
deos and
A resale store is having a sale on DVDs and CDs, DVDs cost $7 and CDs cost $4. On one day, the store made $211 from
DVD and CD sales and sold a total of 40 items.
Write a system of equations, then solve to find how many DVDs and CDs were sold.
*Show both the equations and the solution.
inear
Seos and

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x