Check out my math question brainliest to best !

You could do this step by step or all in 1 statement. I will do it step by step because that's the way I would teach it.

i1

i1 = 4 * (1/2)^(1 - 1)  Reduce the power

i1 = 4 * (1/2)^0   Change 1/2 to 1

i1 = 4 * 1 =     Multiply                                 4

i2

i2 = 4 * (1/2)^(2- 1)  Same directions as above

i2 = 4*(1/2)^1

i2  = 4*1/2 =                                                2

i3

i3 = 4 * (1/2)^(3 -1) Same directions as above.

i3 = 4 * (1/2)^2

i3 = 4 * 1/4

i3 =                                                             1

Total                                                           7    

on friday there were 15 birds

add an image

step-by-step explanation: