6,000,000,000+400,000,000+30,000,000+5,000,000+900,000,20,000+100+70+8
15 cards = 9$
1 card = (9/15)$
12 cards = 9/15 * 12
= 108/15
= 7.2$
Alvin is 16 and Elga is 8.
16 is two times bigger than 8 and 16+8= 24
Answer:
4d + 6
Step-by-step explanation:
Helen ate d donuts.
Andrea ate 6 more than 4 times d.
4d + 6