the frequency of tones that are one and two octaves lower than the starting tone of 2840 cycles per second

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?

Indicate the formula for the following conditions: p^c(n, r)=

If the average of x, y and z is 15 what is their sum