Carol spends 1/2 hour doing her math homework and 4/5 hour doing her science homework. about how much time did she spend in all doing her homework?

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

How to solve a simultaneous equation involved with fractions?

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area