Determine whether the situation calls for a survey, an observational study, or an experiment.

you want to find out if a new reading program can increase reading comprehension.

a. experiment

b. observational study

c. survey

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Adriana sold 50 shares of a company’s stock through a broker. the price per share on that day was $22.98. the broker charged her a 0.75% commission. what was adriana’s real return after deducting the broker’s commission? a. $8.62 b. $229.80 c. $1,140.38 d. $1,149.00

Find the least common denominator for thesetvo rational expressions. n^2/n^2+4n+4 -3/n^2+7n+10