Please show me how to solve 40% of X is 23? NOT what is 40% of 23. But what number is 40% of to equal 23.

Thank you!!

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Students at a high school were asked about their favorite outdoor activity. the results are shown in the two-way frequency table below. fishing camping canoeing skiing total boys 36 44 13 25 118 girls 34 37 22 20 113 total 70 81 35 45 231 select all the statements that are true based on the given table. more girls chose camping as their favorite outdoor activity than boys. more girls chose canoeing as their favorite outdoor activity than those who chose skiing. more boys chose skiing as their favorite outdoor activity than girls. there were more boys surveyed than girls. twice as many students chose canoeing as their favorite outdoor activity than those who chose fishing. more students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters