Alex subtracted two fractions as follows. Examine his work. 54 - 3
,
1
Step 1: 549
387
Step 2:55
3
56
63
3
2
Step 3:5
20
56
Step 4;
63
36
63
Step 5: 535 - 35= 2
What mistake, if any, did he make?

Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest