It would be 20 so you had it right
A) n-20
b.)30=1/2n+1/2
c.)2/3n=30
d.)5n=90
e.)M•3+4=49
Answer:
The answer is 21
Step-by-step explanation: You substitue 3 for C and 4 for D and craete the equation
so you add 3+4=7 and you get
which is 7 times 3 =21
Well one third is 100
so two thirds must be 200
Answer:
=14bx2−7x3−4b+2x
Step-by-step explanation: