A serving of almonds is balanced with a 40 gram weigh and a 15 gram weight on the balance below what is the mass of the serving of almonds in grams

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.