Write this ratio as a fraction in simplest form without any units. 31 minutes to 1 hour

You can use the table below to help convert the units.
1 minute= 60 seconds
1 hour = 60 minutes
1 day = 24 hours
1 week = 7 days

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show