Since energy costs began increasing in the 1970s, a major shift in building practices is the use of more *

Fuel efficient vehicles

Step-by-step explanation:

Since energy costs began increasing in 1970s, a major shift in building practices is the use of more Fuel efficient vehicles. In the 1970s the rise in the cost of energy made most vehicle users to start using smaller vehicles instead of Larger vehicles because smaller cars consume less energy. the effect of this shift caused a structural unemployment in the car manufacturing industry

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation: