5 : 3 = 30:x where x = number of south american butterflies
5/3 = 30 / x
5x = 90
x = 18
there are 18 south american butterflies in the park
Answer:
I don't understand the first one
Answer:
f(-4) = -9
Step-by-step explanation:
f(x)=2x-1
Let x = -4
f(-4)=2*-4-1
= -8 -1
= -9
Agree with that person ^ 1.-15r+12r
2.-13+16y+5