A cyclist traveled 10 kilometers per hour faster than an in line skater in the time it took the cyclist to travel 40 kilometers the skater had gone 20 kilometers find the speed of the skater

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Which shows a reasonable estimation for 124% of 42 using the distributive property?