Please help I don't know what to do Add 3.2+(-0.8) Plot the first addend and the sum on the number 2 3 4 5 6​

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

X+y=-4 x-y=2 use elimination with adding and subtraction