1/13 Sandra has a $20 itunes gift card and spends $3 each month. Which equation can be
used to find how much money Sandra has on her giftcard after x months?

The equation that can be used will be y = 20 - 3x

Amount of gift card that Sandra has = $20

Amount spent each month = $3

Let the remaining amount be represented by y

Therefore, the amount that will remain after x months will be deducted from the original amount that she has which will be:

y = 20 - (3 × x)

y = 20 - 3x

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y=20-3x

Step-by-step explanation:

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).