In general this property looks like
a*1 = a.
This is identity property of multiplication, or multiplicative identity property.
#3.
√18²-5.7² Second Choice
#4
l²=5²+4² = 25+16 = = 41
l=√41
l= 6.4
Second Choice
#5 Only A --- First choice
#7 6 ----- Third choice
#8 V=

942 units³ ---Second choice
Answer:
5x +27y
Step-by-step explanation:
13x + 7y - 8x + 20y
lets group terms according to variable
5x +27y
Answer:
x=6765
Step-by-step explanation: