Rosa made a mosaic while using 42 black tiles 35 blue tiles and 23 red tiles write a percent to represent the number of red tiles.

This is geometry. could anyone ? i can't fail this class. my grade is quite low already.

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?