38a) $10.50 To get this answer, you need to multiply $1.50 by 7
38b) $25.50 To get this answer, you need to subtract $10.50 from $36
40) The answer would be $13.7694 and it could be rounded to $13.77. To get this answer .you need to multiply $12.99 by 1.06 since it has a 6% sales tax.