Shaun had a collection of 840 matchbox vehicles. Of these vehicles, 15% are four-wheelers and 30% are convertibles. The rest are fast cars. How many fast cars are in Shaun’s matchbox collection? 126

252

378

462

Step-by-step explanation:

15% of 840 is 126

30% of 840 is 252

 252

+  126

378

840 - 378 = 462

or

55% of 840 is...

462

Hope this helps! <3

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation:

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation: