Grade 7 Trimester 3 Final Kellan cannot remember what he paid for rent each month last year. Kellan's landlord raised his monthly rent by 2% from last year to this year. Kellan's monthly rent this year is $2,040. . Kellan uses the equation 0.98y = x, where y represents his monthly rent this year and x represents his monthly rent last year, to find that his monthly rent last year was $1,999.20. Explain why Kellan's equation is incorrect, and be sure to include the correct equation in your answer.​

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

Given: ∆mop p∆mop =12+4 3 m∠p = 90°, m∠m = 60° find: mp, mo