Do you add or subtract the expressions (0.94y-3.1x) and 2.08x+1.35y to get a result of-1.02x+2.29y? so you have to add or subtract expressions (0.94x-3.1y) and 2.08x+1.35y to get a result of -1.02x+2.29y?

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y

Find the arc length of the semicircle. 7the grade