Answer all questions and show your work:
1. -25 - 78
2. -18 - (-38)
3. -5 1/4 + 3 /4/5
4. -25.04 - (-37)
5. -8 (-7) (+6)
6.(5 1/4) (-6 3/4)
.2) (+10.1)
8. (-75.3) ÷ (0.3)
9. 42 - (-87)
10. -45 - (-105)

Which expression is equivalent to 3^3 + 2^2?

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints

Part a what is the area of triangle i? show your calculation. part b triangles i and ii are congruent (of the same size and shape). what is the total area of triangles i and ii? show your calculation. part c what is the area of rectangle i? show your calculation. part d what is the area of rectangle ii? show your calculation. part e rectangles i and iii have the same size and shape. what is the total area of rectangles i and iii? show your calculation. part f what is the total area of all the rectangles? show your calculation. part g what areas do you need to know to find the surface area of the prism? part h what is the surface area of the prism? show your calculation. part i read this statement: “if you multiply the area of one rectangle in the figure by 3, you’ll get the total area of the rectangles.” is this statement true or false? why? part j read this statement: “if you multiply the area of one triangle in the figure by 2, you’ll get the total area of the triangles.” is this statement true or false? why?