a jacket has a regular price of $80. it is on sale for 10% off. the sales tax is 7%. cost calculated by first applying a discount, then sales tax. what is the total cost of the jacket including tax?​

Answer is in the file below

tinyurl.com/wpazsebu

B

Step-by-step explanation:

0.10 × 80 = 8

80 - 8 = 72

0.07 × 72 = 5.04

72 + 5.04 = 77.04

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents