Which problem could be solved with the expression 3*(6+4)

a - edward mowed 3 lawns in the morning and 6 lawns in the afternoon. he did this for 4 days. how many lawns did he mow?
b - danielle had 6 dolls. she bought 4 additional dolls. she then went to the thrift store and tripled her collection. how many dolls does she have now?

c - barry ate 3 cookies on monday. he then ate 6 cookies on tuesday. on friday he ate 4 cookies. he follows this pattern for 4 weeks. how many cookies did he eat?

a edward's problem
b danielle's problem
c barry's problem

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

You and three friends will be going out to eat at your favorite restaurant! each of you will order three items of your choice. you will also need to leave a tip. if you split the bill evenly among all four of you, how much will each person need to contribute? locate a menu for your favorite restaurant and pick three items for yourself and each friend. list the restaurant name, items, and prices in a table like the one below. in the column labeled subtotal, determine the cost of each person’s order. the customary tip is 20% of the total bill. in the column labeled tip, calculate the amount of tip each person should leave. in the column labeled total bill, determine the total of each person’s order, including the tip. restaurant name: names item 1 price item 2 price item 3 price subtotal tip total bill your name friend #1 friend #2 friend #3 part 2: questions answer the following questions, showing all work: what is the total cost of the entire bill (all four meals), including tip? write an expression using fractions to show how to determine the amount that each person will pay. then calculate each person's contributions showing all steps in long division. if each person paid an equal amount, who would save the most money? explain your reasoning using at least two complete sentences.

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.