Vlad spent 20 minutes oh his history homework and then completely solved x math problems that each took 2 minutes to complete. what is the equation that can be used to find the value of y the total time that vlad spent on his homework and what are the constraints on the values of x and y

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

Which function is represented by the graph? a. f(x)=|x-1|+3 b. f(x)=|x+1|-3 c. f(x)=|x-1|-3 d. f(x)=|x+1|+3

If its non of them tell me..valerie took a day-trip. she drove from her house for a while and took a coffee break. after her coffee break, she continued driving. after  2  hours of driving after her coffee break, her distance from her house was  210  miles. her average speed during the whole trip was  60  miles per hour.valerie created the equation  y−210=60(x−2)  to represent this situation, where  xx  represents the time in hours from her coffee break and  yy  represents the distance in miles from her house.which graph correctly represents valerie's distance from her house after her coffee break?