Two vectors are given as follows:

vec$(A)=7$hat$(i)+7\mathrm{.}2$hat$(j)+5\mathrm{.}6$hat$(k)$

vec$(B)=-5\mathrm{.}3$hat$(i)+6\mathrm{.}2$hat$(j)+7\mathrm{.}4$hat$(k)$

Find the scalar product of the two vectors. Express your answer using one decimal place. If your answer is negative, please do not forget the minus sign.