A family membership at a tennis club costs a flat fee of $150, plus $25 per person. If n stands for the number of people join, write an equation that represents this situation.

Use sigma notation to represent the following series for 9 terms.

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work