You are taking a multiple choose test with 5 options for every every question. The test has 10 questions. If you randomly guess at the answers, what is the probability you get atleast an 80? (NO SNEAKY LINKS!) thanks !

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?