Antonio has 15 pennies in his pocket. five eighths of his coins are pennies how many coins are in his pocket

Question: what is the value of x 4x-2= (-7) +5x. it would be greatly appreciated if someone could actually explain to me step by step

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%