Alice and carl each have the same total
number of marbles. alice put her marbles
into groups of 4 with none left over. carl
put his marbles into groups of 10 with none
left over. what is the least total number of
marbles that alice and carl can each have?
a. 16
b. 20
c. 32
d. 40

What’s 8y+48 and factor each expression completely

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.

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of