Brett has a $30 online gift voucher. he plans to buy as many books as he can . the cost of each book is $4. there is also a single shipping charge of $2. how many books can he afford without spending more than his gift voucher amount?

7

Step-by-step explanation:

30 >or equal to  4x + 2

Solve for x

28 > or equal to 4x

x > or equal to 7

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )