Answer:
r = 3
Step-by-step explanation:
34r + 3r =111
add;
34r + 3r = 37r
37r = 111
dividedboth sides by;

answer;
r = 3
Heterogeneous and homogeneous
Answer:
0.72 ; 0.799 ; 0.8 ; 0.9
Step-by-step explanation:
4/5 = 0.8
9/10 = 0.9
Ascending order:
0.72 ; 0.799 ; 0.8 ; 0.9
First compare the tenth places. If tenth places are same, compare hundredth places