Multiply (1.2 ⋅ 1028) ⋅ (3 ⋅ 10-19). Express the answer in scientific notation.

a) 3.6 ⋅ 109

b) 3.6 ⋅ 1010

c) 36 ⋅ 109

d) 36 ⋅ 1010

What is the sum of 2m + 10

Use scientific notation to estimate the number of hours in one year? 1 hour = 3,600 seconds

Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of bottles she needs to sell to earn $100. 1.25x + 1.49 = 100 What error did Barbara make in writing the equation?

Three glasses of squash are made using cordial and water. The different mixtures are: Glass A: cordial: water = 3:22. Glass B: cordial = 1/8 of the total volume. Glass C: Cordial = 12.75% of the total volume.

If a = 42 and b = 2 then find ab

Convert 6 kilometers to yards

What is e+f/g in distributive property

Cylinder A has radius r and height h as shown in the diagram. Cylinder B has radius 2r and height 2h. How many times greater is the surface area of Cylinder B than the surface area of Cylinder A?

The triangles in the diagram are congruent. If mF = 40°, mA = 80°, and mG = 60°, what is mB?

3x-4y=65? What is the value of x? When y=4