Andre received $60 for his birthday and put it in his piggy bank. each week, he puts 3 more dollars in his bank. the amount of money in dollars d in his bank is given by d = 3w + 60 where w is the number of weeks he has saved 3 dollars. his sister lana makes a table of reasonable values for w. lana selects 42 as a value for w. what is the corresponding table entry for d?
(teacher hint: they are asking what d will be if w is 42.)
a.54
b.105
c.186
d. 402
i don't get algebra at all