on the weekends maria spends 2 1/2 hours on a project for social studies and then spends 1 1/3 hours on a writing assignment and 1/4 hours on a math assignment what is the total amount of time maria spends on this work??

The area of square garden is 300m squared. how long is the diagonal?

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Find the value of x for which line a is parallel to line b