If you can help with any of these I would really appreciate it. Even if you could just explain what to do. Thank you :)

number 3, if s equals 5mm, then all of the sides on the square would be 5mm, because it is a square. thus making the area 25mm, and the perimeter 20 mm.

answer: 0.95, d

step-by-step explanation:

first, you have to combine the percentages of costumers ordering pizza or salad. 25% (percent of salads ordered) plus 70% (percent of pizzas ordered) is equal to 95%. then, turn 95% into a fraction: 95/100. lastly, divide 95 by 100 and you will get 0.95, d.

answer: -8.2562234e+13