I can answer 18 for you, but I don't understand 16
18. Since when we lose 3 girls the ratio for the girls side drops by 1, that tells us that 1 digit equals 3 people.
a) 5*3=15 so our answer is 15 girls.
b) 4*3=12 and 5*3=15 so 15+12, our answer would be 27
"The product of two irrational numbers is SOMETIMES irrational." The product of two irrational numbers, in some cases, will be irrational. Hope this helps ya out! -Ella
D = 390mi
r = 60 mi/h
390/60 = 6.5
(t) = 6.5 h
F(-2) is the f(x) when x is -2. From the table, it is 1.
Circumference, C = 2
r. Find the radius using this formula then use it to find the area with A = 
.
OR use the formula A = 
Hope it helps. mark as brainliest if it does...