So r+c=42
c=4+r
subsitute c=4+r for r in r+c=42
r+4+r=42
add like terms
2r+4=42
subtract 4 from both sides
2r=38
divide both sides by 2
r=19
rob=19
subsitute r=19 for r in c=4+r
c=19+4
carly=23
15.4m Square because That is what I got when I times those two together
Answer:
a = 4
Step-by-step explanation:
ur welcome
Answer:
Not really sure but 14.25 students seem to be the correct answer.
Step-by-step explanation:
114:8 = 14.25
