The cost to mail a letter is a base charge of $0.42 plus $0.17 for each ounce. write an expression to represent the cost for malling a letter that is wounces. then find the cost for mailing a letter that is four ounces.

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

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?

The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?