Lydia would like to compete in speed texting. she currently texts 4 characters per second and would like to text 8 character per second and will o ly have 10 months. 10r + 4 = 8

Which of these sequences is a geometric sequence a 1,2,4, 7, 11, 16, 22. b. 2.4.8.14.22.38 c.3.6.9. 15.18,21 d. 3,9,27,81,243,729,

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

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.