The number of words Cyrus typed varied directly with the amount of time he spent typing. If he typed 245 words in 7 minutes, how long did it take for him to type 980 words?

A) 140 minutes
B 28 minutes
C 20 minutes
D 4 minutes

P= $1400,300 r = 7 1/2% t = 4 what is i ? $4.29 $429.00 $4290.00

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

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.