Answer:
Answer 7.36r + 0.3
Step-by-step explanation:
0.6 (0.6r + 0.5) + 7r
0.6*0.6r = 0.36r
0.6 * 0.5 = 0.3
0.36r + 0.3 + 7r
7.36r + 0.3
