Please help with these

1.  Benny had 266 dollars to spend on 9 books.  After buying them, he had 14 dollars.  How much did each book cost?

The books cost $28 dollars each.

how to calculate...

$266 - $14 = $252

then take $252 divided by 9 = $ 28

2.  Oceanside Bike Rental Shop charges 14 dolars plus 9 dollars an hour for renting a bike.  Sally paid 86 dollars to rent a bike.  How many hours did she pay to have the bike checked out?

8 hours

how to calculate...

take 86 - 14 = 72

then 72  divided 9 = 8 hours

3.  The sum of three consecutive numbers is 132.  What is the smallest of the three numbers?

43 is the smallest of the 3 numbers

calculation...

x + (x+1) + (x+2) = 132

3x + 3 = 132 -3

3x=129

x=129/3

x=43  (answer for the 1st number)

43+1=44 (answer for the 2nd number)

43+2=45 (answer for the 3rd number)

add them all to make sure they equal to 132

43+44+45=132

132=132

4.  Sandy sold half of her comic books and then bought 8 more.  She now has 16.  How many did she begin with?

x= how many Sandy started with

1/2 x + 8 = 16

1/2x = 16 - 8

1/2x = 8 * 2

x = 16 comics books

Step-by-step explanation:

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

21

step-by-step explanation: