PLEASE HELP RN IF U DONT KNOW THEN PLS DONT GUESS AND MESS UP MY GRADE!

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Given that abcd is a rhombus, what is the value of x?