7. The ratio of the weight of cement to the weight of sand in a concrete mixture is 1:3. Complete the table to show the different weights of cement or sand in the concrete mixture.

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)