Find the length of BC

Can someone pls help me with this

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question

Find two numbers if their ratio is 4: 7 and their difference is 123.

Catherine saved some money and plans to add the same amount each week to her savings account. the table represents the number of weeks that she will save, x, and the total amount of money that she will have in her account, y. weeks, x dollars in account, y 4 74 6 86 9 104 11 116 which linear equation represents catherine’s situation?