Igive brainliest 7 x ( 3 + 9 ) = 21 + ? what is the ?

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

Someone me what is the area of this figure? 18m 18m 8m 16m

Jack has to solve the problem 281-266.how would you tell him to solve the problem ? tell which strategy you would use ,and solve the problem.