Respuesta :
Answer:
they altogether have 7+3+9=19 markers
Step-by-step explanation:
Answer:
38
Step-by-step explanation:
Alice = 7
Mark=7+4=11
Alice and Mark=11+7=18
David=18+2=20
▪20+18=38
Answer:
they altogether have 7+3+9=19 markers
Step-by-step explanation:
Answer:
38
Step-by-step explanation:
Alice = 7
Mark=7+4=11
Alice and Mark=11+7=18
David=18+2=20
▪20+18=38