Help me out with these two questions!

w+7=20

x is greater than or equal to 3

Step-by-step explanation:

The first answer is w + 7 = 20

Step-by-step explanation:

She has already done 7 weeks worth of chores. She needs to do 20 weeks worth of chores. w + 7 = 20 because w is the number of weeks she needs to do chores.

Answer #2:

The inequality shows x or any variable is ≥ 3 because the circle is closed and it is going to the right

Please mark brainliest

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have