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A store is having a sale where school supplies are 30% off their original price. A backpack is on sale for $11.20. What was the original price of the backpack?
How do you solve the system of equations $x + y = 25$ $x+y=25$ and $95 x + 110 y = 2600$ $95x + 110y = 2600$ ?
How do you solve $2 y^{2} = 13 y - 15$ $2y ^ { 2} = 13y - 15$ ?
Cups A and B are cone shaped and have heights of $35 c m$ $35 cm$ and $21 c m$ $21 cm$ and openings with radii of $12 c m$ $12 cm$ and $18 c m$ $18 cm$ , respectively. If cup B is full and its contents are poured into cup A, will cup A overflow? If not how high will cup A be filled?
Solve this simple ratio question?
Question #35738
How is the graph of $y = \frac{1}{3} x^{2} - 4$ $y=1/3x^2-4$ related to the graph of $f (x) = x^{2}$ $f(x)=x^2$ ?
How do you solve $7 x - 4 (2 - 3 x) = 3 x - 6 + 8 x$ $7x-4(2-3x) = 3x-6+8x$ ?
Question #2c178
What is the common ratio of this sequence? 5,2,0.8,0.32
I'm selling a can of soda for $1.00 and have to pay a 10% tax for each can I sell, but for every 10th can I sell I have to pay 5% extra. What would the equation for this be?
Question #3929d
What are the numbers that have exactly 5 factors?
Question #ad734
A triangle has corners at $(7, 2)$ $(7 ,2 )$ , $(4, 3)$ $(4 ,3 )$ , and $(5, 1)$ $(5 ,1 )$ . How far is the triangle's centroid from the origin?
2x^2=-4x-1 using quadratic formula?
Rearrange the following equation to make G the subject, where r > 0 and M > 0 8 pi^2/G^3M = T^2/r^3. ?
How do you solve $3 p^{2} + 2 = 6 p$ $3p ^ { 2} + 2= 6p$ ?