Plsss help me, I need this right or I’m gonna fail, I’m so confused, I will give you Brainlist

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

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.