canh:canh nhà,canh gác

sao:tại sao,vì sao,

Ta có : 4⁵ . 3² = ( 2 ² )⁵ . 3² = 2¹⁰ . 3² 

Vậy số ước nguyên dương của : 4⁵ . 3² = ( 10 + 1 ) ( 2 + 1 ) = 11 . 3 = 33 (ước)

ko ban oi

1 when does James work in the hospital?

James work in the hospital on Mondays, Tuesdays, Wednesday

2what does he do in the hospital?

he helps to take care of children

3/what do they do after dinner?

they look in the newspaper to see what's on TV or we talk about their day

4/when do they go to bed?

they go to bed about midnight