When buddy discovers the revolving door, he goes 4 complete revolutions in 11 seconds. how many times around would he go if he continued at this rate for a full minute

Ihave this math question 2/3 ÷2 1/10=

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?