Which expression is a trinomial of degree 1?

A: x^3 + x^2 - x

B: xy^2

C: 6 + x - y

D: 3x - y

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given