2. Solve problems involving relationships among unknown quantities, 3. Solve problems involving consecutive integers,
Key Examples:
1. Solve.
a) Eight is added to a number and the sum is doubled; the result is 11 less than the numbers,
Find the number,
b) Three times the difference of a number and 2 is equal to 8 subtracted from twice the number.
Find the number,
2. Solve.
a) A college graduating class is made up of 450 students. There are 206 more girls than boys.
How many boys are in the class?

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect