A quality-control engineer wants to be sure that bolts coming off an assembly line are within prescribed tolerances. He wants to conduct a systematic sample by selecting every 10th bolt to come off the assembly line starting with the 6th bolt. Identify the first five bolts to be selected.

What is the measure of angle afe? 79 81 91 99

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25