HELPPP!! PLEASEe

what is your quesion?

Step-by-step explanation:

You're welcome

01: Na=1 H=1 C=1 O=3

2:C=2 H=4 O=2

3:Mg=1 O=2 H=2

4:H=9 P=3 O=12

5:H=4 S=2 O=8

6:N=3 H=7 P=1 O=4

7:C=6 H=12 O=6

8:Ca=4 C=4 O=12

9:Ca=1 C=1 O=3

10:C=18 H=4

11:C=12 H=22 O=11

12:H=4 Mg=3 Si=2 O=9

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

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500