Bisa and Ibrahim both did their laundry today. Bisa does laundry every 5 days and Ibrahim does laundry every 10 days. How many days will it be until Bisa and Ibrahim both do laundry on the same day again? days

Calcule o sexto termo de uma PA. Sabendo que a \( 1=-2 \) e \( r=1 / 3 \)

Determine o primeiro termo da PA na qual \( \mathrm{a} 11=10 \) e \( \mathrm{r}=-1 / 3 \).

Determine a razão de uma PA que tem a1= \( =-8 \) e a17=16.

3) Maurice has a pet hamster. In October he spent \( \$ 13.68 \) on hamster food \( \$ 7.89 \) on wood shavings \( \$ 21.14 \) on a new hamster wheel. About how much money did he spend on his hamster? Estimate by rounding each amount the nearest dollar. Exactly how much did he spend on his hamster in October?

Quantos números pares existem entre os números 157 e \( 707 ? \)