4. mr. y invested $2,000 in two accounts. one pays 7%
annual interest; one 5%. at the end of 1 year, mr. y
earned $155 in interest. how much had mr. y invested
in the account paying 7%?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Shared decision making is always a positive strategy to take

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood?