The sun produces 3.9 ⋅ times 10^33 ergs of radiant energy per second. how many ergs of radiant energy does the sun produce in 1.55 • 10^7 ?

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.