What is the first step in simplifying the following expression? (((4+7) -2)^2 *4 -1 ÷2)

Your

1÷2

2^2

2*4

(4+7)

(helppp!)

Renita analyzed two dot plots showing the snowfall during the winter months for city a and for city b. she found that the median snowfall is 5 inches less in city a than in city b. the mean snowfall is about 2 inches less in city a than in city b. which explains why there is a difference in the measures of center for the sets of data?

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup