Monica works 40 hours per week at two different jobs. she works h hours per week at the first job and is paid r dollars per hour. at her second job she is paid s dollars per hour. which expression gives her weekly pay from the two jobs?
answer choices
rh+(40-h)s
rh+(40+h)s
h(r+s)-40
rs+(40-h)
(40+h)(r+s)

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.