Riley takes 2 walks every day, one in the morning and one in the evening, and walks for a total of 5%4 hours in a 7-day week. Hf he walks for 15 minutes each morning, how many minutes does he walk for each evening?
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Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll

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.