Aregular square pyramid has a base length of 6 cm. the slant height of the pyramid is 9 cm. what is the surface area of the regular pyramid?
a. 90 cm2
b. 120 cm2
c. 144 cm2
d. 252 cm2

Ill mark the brainliest if you me with the these three questions 7,8,9

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z

Ineed here’s a picture of the question