Lia sells beauty supplies and earns a base salary of $500 per week plus a 4% commission on sales. During one particular week, she sells $275 worth of beauty supplies. How much commission does she make for that week?

John makes $10.50 pers hour what expression represens how much he will make if he works h hours

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

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.