Which of the following is a model that shows the flow of energy through an ecosystem?
a. Niche
b. Energy bar graphs
c. Food chain
d. Food web

PLEASE GIVE ME THE RIGHT ANSWER

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

Which graph represents the given linear function 4x+2y=3

I’m really confused and need to learn this