If the teacher begins recording on a digital camera with an hour available, is there enough time to records everyone if she gives 15 minutes introduction at the beginning of class and every student takes a minute to get ready?

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

Dots sells a total of 279 t-shirts ($2) and shorts ($4). in april total sales were $670. how many t-shirts and shorts did dots sell?

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!