A brother and sister are comparing their ages. The older sister is 8 years less than twice the brother's age. The sum of their ages is 25 years. Let a be the age
of the brother. Set up and solve an equation for a.*

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of