How many kilograms of white mushrooms must be picked to produce 1 kg of dried mushrooms, if after preparation for drying, 0.5 of the weight remains, and after drying 0.1 of the weight of the processed mushroom remains?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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?

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?