Anumber from 1 to 10 is chosen randomly. what is the probability of choosing a 4 or an odd number? a.) 3/10 b.) 3/5 c.) 1/5 d.) 1/2

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Can any one me with the answers to these questions 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