3) Perform the given operation using only scientific notation. Show your work. a) 6.3×10^3+3.54×10^2

b) 5.7×10^2−3.2×10^2

c) (2.3×10^3)(2×10^3)

d) (6.3×10^4)÷(2.1×10^2)

Would greatly appreciate these 3 answers

Adoughnut shop charges $0.50 for each doughnut and $1 for a carryout box. shirley has $10 to spend. which inequality can be used to find d, the number of doughnuts she could have bought if she also wants them in one carryout box?

The image of abc is a'b'c. what transformations would result in this image? abc is reflected over the line x = 1, then is rotated -90° around the origin. abc is reflected over the line y = x - 1, then t: (x, y) → (x - 1, y - 1). abc is rotated 90° around the origin, then is reflected over the y-axis. abc is rotated -90° around the origin, then is reflected over the line y = -1.