Jack broke apart 5x216 as (5x200) (5x16) to multiply mentally. what strategy did jack use?
a. commutative
b. associative
c. halving and doubling
d. distributive

Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments.which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Can any one me with the answers to these questions asap?