I used 15 out of the 48 rolls of toilet paper that I bought. What percent did I use so far? Round to the nearest tenths place and include the percent sign.

Step-by-step explanation:

15 rolls? %

48 rolls100%

(15*100)/48=31.25% used

round to the nearest tenth is 31.30%

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

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.