A. You would use base*height (bh). You would multiply 4 and 5. The answer is 20in.
B. It would be 1/3*bh. The answer would be 6.6.
Step-by-step explanation:
31/2×5/23 (use reciprocal)
31×5=155
155÷46=3.369565217
155/46
3 and 17/46
Would it be 4(1)^2+2(2(1)+2)^2=100
2x9= 18
18×-6= -108
Your answer is 108.
