3. A train started from rest and travelled with a uniform acceleration for 6 s. The distance travelled during this time is 15 m. Then it moved with the velocity that has been reached
for the next 10 s. Find the acceleration and the total distance travelled. (Ans :0.83 ms 21
65 m).

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

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Can someone me with this problem i don't understand i need