Uhh d might be 4 because 7 times 4 is 28 and 28+8 is 36
Subtract 9 twice.
24-9-9 = 6
Half of 6 is 3, so 3 is the width since adding it twice and adding the length twice gives perimeter.
Answer: 6600 cu in
Step-by-step explanation: (12*10*40=4800)+(10*10*18=1800)=6600
Answer:
the answer is 879
Step-by-step explanation:
The answer would be (x+3)^2+4