Straws are sold in packs and boxes there are 15 straws in each pack.
there are 48 straws in each box.
tricia buys p packs of straws and b boxes of straws.
write down an expression in terms of p and , for the total number of straws bought by tricia. please help this is timed

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.

Can someone me with this problem i don't understand i need

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.