Answer:
X=17.9
Step-by-step explanation:
Well, there are 100 pennies in a dollar, and 10 dimes in a dollar. So, the ratio could be 10:100, or 1:10.
1) 7^3 x 7^4 = 7^(3+4) = 7^7
2) (-6)^12 x (-6)^5 x (-6)^2 = (-6)^(12+5+2) = (-6)^19
3) 2^2 x 2^7 x 2^ 0 = 2^(2+7+0) = 2^9
Alan is 14. James is twice as young, meaning two times as young as his brother.
14/2 = 7
So, 7 is two times younger than Alan, who is twice as old as James.
James is 7 years old.
Change 10% to decimal form (0.1)
(7*0.1)*(3*10)
0.7*30
=21