Answer:
7290
Step-by-step explanation:
Using proportion then
= 
( cross- multiply )
30c = 18700 ( divide both sides by 30 )
c = 7290
The cost of 120 calculators is 7290
Step-by-step explanation:
b.
34 in.
because it is the most smallest unit
Answer:
You would need to score a 93% to have an average of 90.
Step-by-step explanation:
Well, to check my work you would need to find the average.
So, 93 + 92 + 88 + 87 = 360. Then you divide by four; 360 / 4 = 90. ^^
Answer:
x=-5
Distribute
Subtract 9 from both sides.
Divide both sides by 3.
Use the formulas for the area of a triangle and the area of a rectangle for both figures. The bases are the tops and bottoms of the figures and the lateral sides are the sides not including the top or bottom. It’s basically just finding the areas of each side and adding them all up to find the surface area. Volume is finding the area of the base, using the triangle area formula, and multiplying that by the height of the figure
Hope this helps!
