Do the two rates form a proportion 7/4,and 17.5/10

Solve the equation by completing the square. x^2+2x=17

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?