Work is shown to solve for the system of equations.
Why does the answer for y indicate that the system
has no real-number solutions?
O The solution does not solve for x first.
O The values for y are square roots of negative
numbers.
O The values for y have a positive and a negative
value.
O The values for y have square roots.

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

m∠a is 90°

m∠b is 40°