I have my Math test coming up. I got 2 chapters that I need to prepare for. 1. Direct and Indirect Proportion/Variations
2. Indices and Standard Form

My school uses Oxford's New Syllabus Mathematics 7th Edition Book 2 and Book 3.

Can someone explain me these topics briefly? Tell each topic's formula and what it is and why it is what it is. I'll really appreciate if you take your precious time out. If I had any further queries on your answer I'll ask through comments, hope you'll reply. Thank you! ​

answer: ♡♡♡♡♡♡♡♡♡♡

step-by-step explanation:

answer: 819.89 miles across america

step-by-step explanation:

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation: