If anyone knows how to do these, please help. I only need one answer from each of the two problems.

Answer:Step-by-step explanation:95) We know, thanks to Ohm's law that: [tex]V = I . R[/tex]Where: V= voltageI = electric currentR = resistance or impedance. We also know that there are two types of electric circuits: the resistances can be connected parallel to each other, or a series circuit, where the electricity has only one path to flow. In this case, the total resistence or impedance can be calculated adding each impedance. a) R= R1 + R2 + R3 = 2 Ω + 5 Ω + 7 Ω = 14 Ωb) R = 12 Ω+ 8 Ω +15 Ω = 35 Ωc) R = 2 Ω +8 Ω +6 Ω +4 Ω= 20 Ω96) a) [tex]Z1= 3 + 4 = 7\\Z2=6+2= 8\\R = \frac{7.8}{7+8} = \frac{56}{15 }[/tex]Ωb) [tex]Z1=5+3=8\\Z2=8+9=17\\R=\frac{17.8}{17+8} =\frac{136}{25}[/tex]Ωc)[tex]Z1=4+2=6\\Z2=5+7=12\\R= \frac{6.12}{6+12} = 4[/tex]Ω