The sum of two numbers is 59. The smaller number is 13 less than the larger number. What are the numbers?

Write each fraction as an equivalent fraction with a denominator of 120then write the original fractions in order from samllest to largest

Prove that 16^4-2^13-4^5 is divisible by 11.

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?