Determine whether the study depicts an observational study or an experiment. eighth dash grade students are randomly divided into two groups. a. one group is taught english using traditional techniques. b. the other is taught english using a reform method. after 1 year comma each group is given an achievement test to compare its proficiency with that of the other group. choose the correct description of the study.

Will mark brainliest if you answer ! the taco shop sold 198 lunches friday. this number is 3 more than 3 times the number they sold monday. let n represent the number of lunches sold monday. which equation shows an equality between two different ways of expressing the number of lunches sold on friday? a. n – 3 = 198 b. 3n – 3 = 198 c. 3n + 3 = 198 d. n + 3 = 198

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.