Will give graph shows the distance y, in miles, of a moving train from a station over a certain period of time, x, in hours:
what is the speed (in miles per hour) of the train and why?

45 miles per hour, because speed is the rate of change of distance

90 miles per hour, because speed is the initial value of the function

135 miles per hour, because speed is the distance traveled in unit time

270 miles per hour, because speed is the distance traveled in a certain time

Jace wrote a sentence as an equation. 56 is 14 more than a number. 14+ = 56 which statement best describes jace's work? jace is not correct. the phrase more than suggests using the symbol > and jace did not use that symbol. jace is not correct. he was correct to use addition, but the equation should be 56+ p = 14 jace is not correct. the first number in the sentence is 56, so the equation should start with 56. jace is correct. the phrase more than suggests addition, so jace showed that 14 plus a variable equals 56. o

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

Evaluate 5 + 6 · 2 – 8 ÷ 4 + 7 using the correct order of operations. a. 22 b. 11 c. 27 d. 5