Write two ratios equivalent to 24 : 9. 1. 12 : 5, 48 : 18, 2. 8 : 3, 72 : 30, 3. 6 : 2, 50 : 20
4. 8 : 3, 48 : 18

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?

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