Arectangle is 9 ft long and 40 in. wide. what is its perimeter in inches? (note: 1 ft = 12 in.)

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.

Ofin . (2,4) (2,1) a. y= 2 b. x= 2 c. x= -2 d. y= 2x