Acollector has 100 movie posters and 80 band posters. she wants to sell 20 movie posters but still have her poster collection maintain the same ratio of 100: 80. if she sells 20 movie posters, how many band posters should she sell? complete the explanation to find out how many band posters she should sell

16 band posters

100:80=5/4

100-20:?=5/4 or 80:?=5/4

80/5=16

16*4=64

80:64

80-64=16

16 band posters.

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5