Can someone help with this question please?! (See photo) :)

10 units^2

Step-by-step explanation: You've got two triangles you just need to add together. One to the left of the y axis and one to the right. The area formula for a triangle is 1/2•b•h = a. Starting with the left we have a base of length 4 and a height of length 4. 4•4 = 16/2 = 8 units^2. Thats our first triangle. On the right we have a base of 2 and a height of 2 so 2•2 = 4/2 = 2 units^2. Add together 2 and 8 = 10 units^2 for the total area. You can check this number by counting the squares and half squares up.

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)