Olivia and Marty missed the lesson on exponents. Olivia incorrectly wrote 105 = 50 on her paper, and Marty incorrectly wrote 2.5 × 102 = 2.500 on his paper. What mistake has Olivia made?

Explain using words, numbers, or pictures why her thinking is incorrect and what she needs to do to correct her answer.

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

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation: