Answer:
A= 320 in^2
Step-by-step explanation:
A = 1/2 (d1)(d2)
A = 1/2(20)(32)
a and c
a and c's exponents are in decreasing order
Answer: 9
Step-by-step explanation: 9 + 9 = 9
Answer: 8 inches
1x4=4 4+4=8
Answer: 70 percent
280 divided by 400 is 0.70, so 280 is 70 percent of 400.