Red to total I believe is 12/23
Answer:
C I think
Step-by-step explanation:
Sorry if it's wrong
Answer:

Step-by-step explanation:

Answer:
As P. d=-4
Step-by-step explanation:
so multiplying both side of equation by - 1
=> - P.d=4. and since 20 =5×4 so 20=5(-P.d) ==> - 5t(P.d)
=> and as -t15=-t20+t5 so it is +5t(P.d)+t5
so - 5t(P.d) +5t(P.d) +t5
answer is t5