Tanya does push-ups and sit-ups every morning. She does P push-ups and 2p + 5 sit-ups. Which statement describes the number of sit-ups Tanya does every morning?
0 The number of sit-ups is 5 more than half the number of push-ups she does.
O The number of sit-ups is 5 more than twice the number of push-ups she does.
O The number of sit-ups is 5 fewer than half the number of push-ups she does.
O The number of sit-ups is 5 fewer than twice the number of push-ups she does.

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?