-3x + 8=17
explain how to solve this two-step equation plz

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

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.

How many 3/8s are in 6 plz someone tell me now