Answer:
=
units
Step-by-step explanation:
x₁ = 2 ; y₁ = 5
x₂ = 6 ; y₂ = -1
D = 
=
=
= 
D =
units
Answer:
106
Explanation:
3a+b2
Substitute the values for the variables:
3(14) + 2(32)
Solve:
3(14) + 2(32)
42 + 64
106
Answer:72 are boys.
Step-by-step explanation:
40%of 180 is 72.
Change into improper fraction
take 3 x 25+18 divided by 25=93\25
93\25=3.72