The ratio table shows the costs for different lengths of silver chain. Find the unit rate in dollars per inch. Length (inches)
16
18
20
22
Cost (dollars)
$36.00 $40.50 $45.00 $49.50
The unit rate is $ per inch.

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14

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.