out of 30 questions on the maths test tomi knew the answer to 27 of them what percentage of questions did tomi know the answer for ?

Which system of linear inequalities is graphed? can somebody pleasssse

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?