6x6-(7+5) I know it is 24 but I need to show work for it and I tried but it didn't look right I'm coming on here for help

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319