Answer for the first question:
Answer:
x = -7
Step-by-step explanation:
f(x) = -2x + 9
f(x) = 23
therefore, f(x) =
-2x + 9 = 23
-2x = 23 - 9
-2x = 14
-x = 14 ÷ 2
-x = 7
x = -7
I calculated that he bought 6 pens and 19 pencils
Answer:
bballs: 8*2+2=18
baseballs: 5*8-4=36
softballs: 36/2+6=24
Step-by-step explanation:
easy Hope this helps!
Answer:
Here are the formulae you need. Just plug in the values you have and you will get your answers.
Area of a triangle: 1/2*base*height
Volume of a rectangular prism: length*width*height
Volume of a cylinder: pi*r^2*height
Step-by-step explanation:
